Create advanced applications with Python and OpenCV, exploring the potential of facial recognition, machine learning, deep learning, web computing and augmented reality. Key Features * Develop your computer vision skills by mastering algorithms in Open Source Computer Vision 4 (OpenCV 4)and Python * Apply machine learning and deep learning techniques with TensorFlow, Keras, and PyTorch * Discover the modern design patterns you should avoid when developing efficient computer vision applications Book Description OpenCV is considered to be one of the best open source computer vision and machine learning software libraries. It helps developers build complete projects in relation to image processing, motion detection, or image segmentation, among many others. OpenCV for Python enables you to run computer vision algorithms smoothly in real time, combining the best of the OpenCV C++ API and the Python language. In this book, you'll get started by setting up OpenCV and delving into the key concepts of computer vision. You'll then proceed to study more advanced concepts and discover the full potential of OpenCV. The book will also introduce you to the creation of advanced applications using Python and OpenCV, enabling you to develop applications that include facial recognition, target tracking, or augmented reality. Next, you'll learn machine learning techniques and concepts, understand how to apply them in real-world examples, and also explore their benefits, including real-time data production and faster data processing. You'll also discover how to translate the functionality provided by OpenCV into optimized application code projects using Python bindings. Toward the concluding chapters, you'll explore the application of artificial intelligence and deep learning techniques using the popular Python libraries TensorFlow, and Keras. By the end of this book, you'll be able to develop advanced computer vision applications to meet your customers' demands. What you will learn * Handle files and images, and explore various image processing techniques * Explore image transformations, including translation, resizing, and cropping * Gain insights into building histograms * Brush up on contour detection, filtering, and drawing * Work with Augmented Reality to build marker-based and markerless applications * Work with the main machine learning algorithms in OpenCV * Explore the deep learning Python libraries and OpenCV deep learning capabilities * Create computer vision and deep learning web applications Who this book is for This book is designed for computer vision developers, engineers, and researchers who want to develop modern computer vision applications. Basic experience of OpenCV and Python programming is a must.

Write efficient, reusable scripts to build custom characters, game environments, and control enemy AI Key Features * Build captivating multiplayer games using Unreal Engine and C++ * Incorporate existing C++ libraries into your game to add extra functionality such as hardware integration * Practical solutions for memory management, error handling, inputs, and collision for your game codebase Book Description Unreal Engine 4 (UE4) is a popular and award-winning game engine that powers some of the most popular games. A truly powerful tool for game development, there has never been a better time to use it for both commercial and independent projects. With more than 100 recipes, this book shows how to unleash the power of C++ while developing games with Unreal Engine. This book takes you on a journey to jumpstart your C++ and UE4 development skills. You will start off by setting up UE4 for C++ development and learn how to work with Visual Studio, a popular code editor. You will learn how to create C++ classes and structs the Unreal way. This will be followed by exploring memory management, smart pointers, and debugging your code. You will then learn how to make your own Actors and Components through code and how to handle input and collision events. You will also get exposure to many elements of game development including creating user interfaces, artificial intelligence, and writing code with networked play in mind. You will also learn how to add on to the Unreal Editor itself. With a range of task-oriented recipes, this book provides actionable information about writing code for games with UE4 using C++. By the end of the book, you will be empowered to become a top-notch developer with UE4 using C++ as your scripting language! What you will learn * Create C++ classes and structs that integrate well with UE4 and the Blueprints editor * Discover how to work with various APIs that Unreal Engine already contains * Utilize advanced concepts such as events, delegates, and interfaces in your UE4 projects * Build user interfaces using Canvas and UMG through C++ * Extend the Unreal Editor by creating custom windows and editors * Implement AI tasks and services using C++, Blackboard, and Behavior Trees * Write C++ code with networking in mind and replicate properties and functions Who this book is for If you are really passionate game developer looking for solutions to common scripting problems, then this is the book for you. Understanding of the fundamentals of game design and C++ is expected to get the most from this book.

外科医生讲述器官移植这一精密手术创造奇迹的过程。 "With When Death Becomes Life, Mezrich has performed the perfect core biopsy of transplantation—a clear and compelling account of the grueling daily work, the spell-binding history and the unsettling ethical issues that haunt this miraculous lifesaving treatment. Mezrich's compassionate and honest voice, punctuated by a sharp and intelligent wit, render the enormous subject not just palatable but downright engrossing."—Pauline Chen, author of Final Exam: A Surgeon’s Reflections on Mortality A gifted surgeon illuminates one of the most profound, awe-inspiring, and deeply affecting achievements of modern day medicine—the movement of organs between bodies—in this exceptional work of death and life that takes its place besides Atul Gawande’s Complications, Siddhartha Mukherjee’s The Emperor of All Maladies, and Jerome Groopman’s How Doctors Think. At the University of Wisconsin, Dr. Mezrich creates life from loss, transplanting organs from one body to another. In this intimate, profoundly moving work, he illuminates the extraordinary field of transplantation that enables this kind of miracle to happen every day.When Death Becomes Life is a thrilling look at how science advances on a grand scale to improve human lives. Mezrich examines more than one hundred years of remarkable medical breakthroughs, connecting this fascinating history with the inspiring and heartbreaking stories of his transplant patients. Combining gentle sensitivity with scientific clarity, Mezrich reflects on his calling as a doctor and introduces the modern pioneers who made transplantation a reality—maverick surgeons whose feats of imagination, bold vision, and daring risk taking generated techniques and practices that save millions of lives around the world.Mezrich takes us inside the operating room and unlocks the wondrous process of transplant surgery, a delicate, intense ballet requiring precise timing, breathtaking skill, and at times, creative improvisation. In illuminating this work, Mezrich touches the essence of existence and what it means to be alive. Most physicians fight death, but in transplantation, doctors take from death. Mezrich shares his gratitude and awe for the privilege of being part of this transformative exchange as the dead give their last breath of life to the living. After all, the donors are his patients, too.When Death Becomes Life also engages in fascinating ethical and philosophical debates: How much risk should a healthy person be allowed to take to save someone she loves? Should a patient suffering from alcoholism receive a healthy liver? What defines death, and what role did organ transplantation play in that definition? The human story behind the most exceptional medicine of our time, Mezrich’s riveting book is a beautiful, poignant reminder that a life lost can also offer the hope of a new beginning.

The hapless Crim family sets sail on their final adventure in the zaniest installment of the Crims series, perfect for fans of Lemony Snicket and Caroline Carlson!Imogen Crim has been terribly bored since she returned to Blandington. So when her nemesis-turned-best friend Ava Kruk offers to swing by the Crims’ dreadful beach vacation in Dullport and rescue her in her stolen submarine, Imogen quickly agrees. A real heist with a real villain—this is the excitement Imogen has been looking for.But before Imogen and Ava can accomplish their mission, the entire Crim family catches up to them, dressed in their pirate-y finest. And what starts as an innocent (well, for a boat full of criminals) quest for buried treasure is about to become a stand-off with an up-and-coming super villain called The Gull.If Imogen has any hope of saving her family from his claws—and returning to her vacation—she’ll have to trust a Kruk with her life.

Everything has a price . . .Railway magnate Tom Severin is wealthy and powerful enough to satisfy any desire as soon as it arises. Anything—or anyone—is his for the asking. It should be simple to find the perfect wife—and from his first glimpse of Lady Cassandra Ravenel, he’s determined to have her. But the beautiful and quick-witted Cassandra is equally determined to marry for love—the one thing he can’t give.Everything except her . . .Severin is the most compelling and attractive man Cassandra has ever met, even if his heart is frozen. But she has no interest in living in the fast-paced world of a ruthless man who always plays to win. When a newfound enemy nearly destroys Cassandra’s reputation, Severin seizes the opportunity he’s been waiting for. As always, he gets what he wants—or does he? There’s one lesson Tom Severin has yet to learn from his new bride: Never underestimate a Ravenel.The chase for Cassandra’s hand may be over. But the chase for her heart has only just begun . . . 

一本幽默诙谐的现代社会寓言小说集，记录了普通人平凡却又跌宕起伏的生活。 From the?author of the “sophisticated and erudite”?Peculiar Ground?(Boston Globe),?comes a collection of classic, witty fables, elegantly updated for our modern times.It's in the nature of myth to be infinitely adaptable.Each of these startlingly original stories is set in modern Britain. Their characters include a people-trafficking gang-master and a prostitute, a migrant worker and a cocksure estate agent, an elderly musician doubly befuddled by dementia and the death of his wife, a pest-controller suspected of paedophilia and a librarian so well-behaved that her parents wonder anxiously whether she’ll ever find love.They’re ordinary people, preoccupied, as we all are now, by the deficiencies of the health service, by criminal gangs and homelessness, by the pitfalls of dating in the age of #metoo. All of their stories, though, are inspired by ones drawn from Graeco-Roman myth, from the Bible or from folk-lore.The ancients invented myths to express what they didn’t understand. These witty fables, elegantly written and full of sharp-eyed observation of modern life, are also visionary explorations of potent mysteries and strange passions, charged with the hallucinatory beauty and horror of their originals.

索菲·汉娜心理悬疑小说：女主人公贝斯开车送儿子去踢足球，路过多年未联系、曾经的好友芙洛拉家忍不住拜访，却发现芙洛拉家的两个孩子——五岁的托马斯和三岁的艾米丽——看起来仍然和12年前一模一样，这怎么可能呢？ The New York Times bestselling author of The Monogram Murders and Woman with a Secret returns with a sharp, captivating, and expertly plotted tale of psychological suspense.All Beth has to do is drive her son to his soccer game, watch him play, and then return home. Just because she knows her ex-best friend lives near the field, that doesn’t mean she has to drive past her house and try to catch a glimpse of her. Why would Beth do that and risk dredging up painful memories? She hasn’t seen Flora for twelve years. She doesn’t want to see her today—or ever again. But she can’t resist. She parks outside the open gates of Newnham House, watches from across the road as Flora arrives and calls to her children Thomas and Emily to get out of the car. Except . . . There’s something terribly wrong. Flora looks the same, only older. Twelve years ago, Thomas and Emily were five and three years old. Today, they look precisely as they did then. They are Thomas and Emily without a doubt, but they haven’t changed at all. They are no taller, no older. Why haven’t they grown? How is it possible that they haven’t grown up?

“Stitched together with love, this is a story just waiting for your favorite reading chair. With her signature style and skill, Susan Wiggs delivers an intricate patchwork of old wounds and new beginnings, romance and the healing power of friendship, wrapped in a lovely little community that’s hiding a few secrets of its own.”   — Lisa Wingate, New York Times Bestselling author of Before We Were YoursThe #1 New York Times bestselling author brings us her most ambitious and provocative work yet—a searing and timely novel that explores the most volatile issue of our time—domestic violence. At the break of dawn, Caroline Shelby rolls into Oysterville, Washington, a tiny hamlet at the edge of the raging Pacific.She’s come home.Home to a place she thought she’d left forever, home of her heart and memories, but not her future. Ten years ago, Caroline launched a career in the glamorous fashion world of Manhattan. But her success in New York imploded on a wave of scandal and tragedy, forcing her to flee to the only safe place she knows.And in the backseat of Caroline’s car are two children who were orphaned in a single chilling moment—five-year-old Addie and six-year-old Flick. She’s now their legal guardian—a role she’s not sure she’s ready for. But the Oysterville she left behind has changed. Her siblings have their own complicated lives and her aging parents are hoping to pass on their thriving seafood restaurant to the next generation. And there’s Will Jensen, a decorated Navy SEAL who’s also returned home after being wounded overseas. Will and Caroline were forever friends as children, with the promise of something more . . . until he fell in love with Sierra, Caroline’s best friend and the most beautiful girl in town. With her modeling jobs drying up, Sierra, too, is on the cusp of reinventing herself.Caroline returns to her favorite place: the sewing shop owned by Mrs. Lindy Bloom, the woman who inspired her and taught her to sew. There she discovers that even in an idyllic beach town, there are women living with the deepest of secrets. Thus begins the Oysterville Sewing Circle—where women can join forces to support each other through the troubles they keep hidden. Yet just as Caroline regains her creativity and fighting spirit, and the children begin to heal from their loss, an unexpected challenge tests her courage and her heart. This time, though, Caroline is not going to run away. She’s going to stand and fight for everything—and everyone—she loves.

The third action-packed story in Matt Phelan’s acclaimed Knights vs. series! Five daring heroes face their most difficult challenge yet: saving Camelot itself. Can the band of friends survive an evil queen, a powerful Faerie King, and one nasty dragon? This heavily illustrated middle grade adventure is a hilarious tale of derring-do, perfect for reluctant readers as well as fans of The Terrible Two and The Wild Robot. A year has passed since the knights battled monsters on the mist-covered Orkney Isles. The knights have searched high and low for the elusive Queen Morgause, who is bent on destroying King Arthur and all of Camelot. Finally, a tip from the legendary Green Knight sends the heroes searching for the Faerie Realm, an eerie world where nothing is what it seems. Together, the knights will lose an old friend, discover a new ally, face a dangerous dragon, and learn what it means to be a legend. With art on nearly every page, including an epic fight scene depicted in several graphic-novel–style spreads, this engaging story is ideal for reluctant readers, aspiring knights, and action-adventure fans. Camelot may never be the same after these heroes come to the rescue!

The acclaimed author of Where the Watermelons Grow is back with a story perfect for fans of Lynda Mullaly Hunt and Ali Benjamin, about finding friendship after a tragic loss. It’s been eighty-three days since Annie Lee’s daddy died, but she still sees reminders of him everywhere. His record player mysteriously plays his favorite songs, there’s shaving cream in the sink every morning, and the TV keeps flipping to the Duke basketball games he loved.She knows Mama notices it too, but Mama’s been working around the clock to make ends meet. To make matters worse, Annie Lee’s friends ditched her over the summer. She feels completely alone—until she meets Mitch. Though Mitch is tough and confident on the outside, she may need a friend just as badly as Annie Lee. But after losing so much, Annie Lee is afraid to let anyone get too close.And Mitch isn’t the only friend trying to break through Annie Lee’s defenses. Ray, an elderly pianist who plays at a local mall, has been giving her piano lessons. His music is pure magic, and Annie Lee hopes it might be the key to healing her broken heart. But when Ray goes missing, searching for him means breaking a promise to Mitch.Faced with once again losing those who mean the most to her, Annie Lee must make a choice: retreat back into her shell, or risk admitting how much she needs Mitch and Ray—even if it means getting hurt all over again.Just like in her debut, Where the Watermelons Grow, Cindy Baldwin brings her signature twist of magic to this authentically heartfelt story.

Diary of a Wimpy Kid meets Percy Jackson in Odd Gods, the critically acclaimed and hilarious illustrated series about the middle school gods you never hear about in myths. In book two, Oddonis must embark on the strangest odyssey ever to save Zeus from the world’s cutest curse. Sometimes it feels like Oddonis can’t do anything right. Especially compared to his literally perfect twin brother, Adonis. But this time, Oddonis has really messed up by accidentally turning his father, the all-powerful king of the gods, Zeus, into a giant baby. Now it’s up to Oddonis to assemble a team of his odd friends—Mathena, Gaseous, and Puneous—and journey to the underworld to get the curse reversed. Along the way, Oddonis will have to overcome a series of dangerous obstacles, his obnoxious brother, his own self-doubt, and the horrible scents of his best friend Gaseous.Can Gods as unlikely, unusual, and unheroic as Oddonis and his friends really save the day?Get ready to overcome the odds in the second hilarious book about the Odd Gods from author David Slavin, filled with dozens of black-and-white illustrations by award-winning artist Adam Lane. 

A step-by-step guide to learning Flutter and Dart 2 for creating Android and iOS mobile applications Key Features * Get up to speed with the basics of Dart programming and delve into Flutter development * Understand native SDK and third-party libraries for building Android and iOS applications using Flutter * Package and deploy your Flutter apps to achieve native-like performance Book Description Google Flutter is a cross-platform mobile platform that makes it easier to write secure and high-performance native apps for iOS and Android. This book begins by introducing you to the Flutter framework and basics of Dart. You’ll learn to set up the development environment to get started with your Flutter project. The book will guide you through designing the user interface and user input functions for your app. As you progress, you’ll explore the navigator widget to manage your app routes and understand how to add transitions between screens. You’ll then get to grips with developing your own plugin and discover how to structure good plugin code. The book will help you display a map from the Flutter app, add markers and interactions to it, and use the Google Places API. You’ll build on your knowledge by not only adding tests to create a bug-free app, but also preparing it for deployment on Apple's App Store and Google Play. In later chapters, you’ll learn to improve the user experience with advanced features such as map integrations, platform-specific code with native programming languages, and personalized animation options for designing intuitive UIs. By the end of this book, you’ll be well-versed with Dart programming and have the skills to develop your own mobile apps or build a career as a Dart and Flutter app developer. What you will learn * Understand the fundamentals of the Dart programming language * Explore the core concepts of the Flutter UI and how it compiles for multiple platforms * Develop Flutter plugins and widgets and understand how to structure good plugin code * Style your apps with widgets and learn the difference between stateful and stateless widgets * Add animation to your UI using Flutter's AnimatedBuilder component * Integrate your native code into your Flutter codebase for native app performance Who this book is for This book is for developers looking to learn Google's revolutionary framework, Flutter from scratch. No knowledge of Flutter or Dart is required. However, basic programming language knowledge will be helpful.

Sure to be hailed alongside H is for Hawk and The Hare with Amber Eyes, an exceptional work that is at once an astonishing journey across countries and continents, an immersive examination of a great artist’s work, and a moving and intimate memoir.In 2012, facing the death of his father and impending fatherhood, Toby Ferris set off on a seemingly quixotic mission to track down and look at—in situ—every painting still in existence by Pieter Bruegel the Elder, the most influential and important artist of Northern Renaissance painting.The result of that pursuit is a remarkable journey through major European cities and across continents. As Ferris takes a keen analytical eye to the paintings, each piece brings new revelations about Bruegel’s art, and gives way to meditations on mortality, fatherhood, and life. Ferris conjures a whole world to which most of us have probably lost the key, and in the process teaches us how to look, patiently and curiously, at the world.Short Life in a Strange World is a dazzlingly original and assured debut—a strange and bewitching hybrid of art criticism, philosophical reflection, and poignant memoir. Beautifully illustrated with sixty-six color images, it subtly alters the way we see the world and ourselves.

A collection of in-depth conversations with leading developer advocates that reveal the world of developer relations today Key Features * Top developer advocates reveal the work they’re doing at the center of their tech communities and the impact their advocacy is having on the tech industry as a whole * Discover the best practices of developer advocacy and get the inside story on working at some of the world’s largest tech companies * Features contributions from noted developer advocates, including Scott Hanselman, Sally Eaves, Venkat Subramaniam, Jono Bacon, Ted Neward, and more Book Description What exactly is a developer advocate, and how do they connect developers and companies around the world? Why is the area of developer relations set to explode? Can anybody with a passion for tech become a developer advocate? What are the keys to success on a global scale? How does a developer advocate maintain authenticity when balancing the needs of their company and their tech community? What are the hot topics in areas including Java, JavaScript, "tech for good," artificial intelligence, blockchain, the cloud, and open source? These are just a few of the questions addressed by developer advocate and author Geertjan Wielenga in Developer, Advocate!. 32 of the industry's most prominent developer advocates, from companies including Oracle, Microsoft, Google, and Amazon, open up about what it's like to turn a lifelong passion for knowledge sharing about tech into a rewarding career. These advocates run the gamut from working at large software vendors to small start-ups, along with independent developer advocates who work within organizations or for themselves. In Developer, Advocate!, readers will see how developer advocates are actively changing the world, not only for developers, but for individuals and companies navigating the fast-changing tech landscape. More importantly, Developer, Advocate! serves as a rallying cry to inspire and motivate tech enthusiasts and burgeoning developer advocates to get started and take their first steps within their tech community. What you will learn * Discover how developer advocates are putting developer interests at the heart of the software industry in companies including Microsoft and Google * Gain the confidence to use your voice in the tech community * Immerse yourself in developer advocacy techniques * Understand and overcome the challenges and obstacles facing developer advocates today * Hear predictions from the people at the cutting edge of tech * Explore your career options in developer advocacy Who this book is for Anybody interested in developer advocacy, the impact it is having, and how to build developer advocacy capabilities

“Reading Scratched gave me the feeling of standing very close to a blazing fire. It is that brilliant, that intense, and one of the finest explorations I know of what it means to be a woman and an artist.”—Sigrid Nunez, author of The Friend and Winner of the National Book Award for FictionIn a bold and brilliant memoir that reinvents the form, the acclaimed author of the novel Museum Pieces and the collection Mendocino Fire explores the ferocious desire for perfection which has shaped her writing life as well as her rich, dramatic, and constantly surprising personal life.Scratched is an intimate account of the uses a child, and the adult she becomes, will find for perfectionism and the role it will play in every part of her life. Elizabeth Tallent’s story begins in a hospital in mid-1950s suburban Washington, D.C., when her mother refuses to hold her newborn daughter, shocking behavior that baffles the nurses. Imagining her own mother’s perfectionist ideal at this critical moment, Elizabeth moves back and forth in time, juxtaposing moments in the past with the present in this innovative and spellbinding narrative.Elizabeth traces her journey from her early years in which she perceived herself as “the child whose flaws let disaster into an otherwise perfect family,” to her adulthood, when perfectionism came to affect everything. In the decade between 27 and 37, she publishes five literary books with Knopf and her short stories appear in The New Yorker. But this extraordinary start to her career is followed by twenty-two years of silence. She wrote, or rather published, nothing at all. Why? Scratched is the remarkable response to that question.Elizabeth’s early publications secure her a coveted teaching job at Stanford University. As she toggles between Palo Alto and the Mendocino coast where she lives, raises her son Gabriel, and pursues an important psychoanalysis, Elizabeth grapples with the perfectionism that has always been home to her. Eventually, she finds love and acceptance in the most unlikely place, and finally accepts an “as is” relationship with herself and others. Her final triumph is the writing of this memoir, filled with wit, humor, and heart, and unlike any other you will read. Scratched is a brave book that repeatedly searches for the emotional truth beneath the conventional surface of existence.

前《星期日泰晤士报》专栏作家多利 · 奥尔德顿处女作，这本回忆录讲述了成长、变老过程中渐渐学会如何处理工作、爱情、友谊、得失。作者真诚、幽默、充满智慧，她细腻和极具洞察力的描述会引起各个年龄段女性的共鸣，仿佛在看真实版的《BJ单身日记》 "There is no writer quite like Dolly Alderton working today and very soon the world will know it.”--Lisa Taddeo, author of #1 New York Times bestseller Three Women“Dolly Alderton has always been a sparkling Roman candle of talent. She is funny, smart, and explosively engaged in the wonders and weirdness of the world. But what makes this memoir more than mere entertainment is the mature and sophisticated evolution that Alderton describes in these pages. It’s a beautifully told journey and a thoughtful, important book. I loved it.”--Elizabeth Gilbert, New York Times bestselling author of Eat, Pray, Love and City of GirlsThe wildly funny, occasionally heartbreaking internationally bestselling memoir about growing up, growing older, and learning to navigate friendships, jobs, loss, and love along the rideWhen it comes to the trials and triumphs of becoming an adult, journalist and former Sunday Times columnist Dolly Alderton has seen and tried it all. In her memoir, she vividly recounts falling in love, finding a job, getting drunk, getting dumped, realizing that Ivan from the corner shop might just be the only reliable man in her life, and that absolutely no one can ever compare to her best girlfriends. Everything I Know About Love is about bad dates, good friends and—above all else— realizing that you are enough. Glittering with wit and insight, heart and humor, Dolly Alderton’s unforgettable debut weaves together personal stories, satirical observations, a series of lists, recipes, and other vignettes that will strike a chord of recognition with women of every age—making you want to pick up the phone and tell your best friends all about it. Like Bridget Jones’ Diary but all true, Everything I Know About Love is about the struggles of early adulthood in all its terrifying and hopeful uncertainty.

Twenty-five beautifully written stories, penned in exile, evocatively depicting life on a manor in feudal Russia and examining the conflicts between serfs and landlordsA Sportsman’s Notebook, Ivan Turgenev’s first literary masterpiece, is a sweeping portrayal of the magnificent nineteenth–century Russian countryside and the harsh lives of those who inhabited it. In a powerful and gripping series of sketches, a hunter wanders through the vast landscape of steppe and forest in search of game, encountering a varied cast of peasants, landlords, bailiffs, overseers, horse traders, and merchants. He witnesses both feudal tyranny and the submission of the tyrannized, against a backdrop of the sublime and pitiless terrain of rural Russia.These exquisitely rendered stories, now with a stirring introduction from Daniyal Mueenuddin, were not only universally popular with the reading public but, through the influence they exerted on important members of the Tsarist bureaucracy, contributed to the major political event of mid–nineteenth–century Russia: the Great Emancipation of the serfs in 1861. Rarely has a book that offers such undiluted literary pleasure also been so strong a force for significant social change, one that continues to speak to readers centuries later.

Architect scalable, reliable, and maintainable applications for enterprises with Python Key Features *Explore various Python design patterns used for enterprise software development *Apply best practices for testing and performance optimization to build stable applications *Learn about different attacking strategies used on enterprise applications and how to avoid them Book Description Dynamically typed languages like Python are continuously improving. With the addition of exciting new features and a wide selection of modern libraries and frameworks, Python has emerged as an ideal language for developing enterprise applications. Hands-On Enterprise Application Development with Python will show you how to build effective applications that are stable, secure, and easily scalable. The book is a detailed guide to building an end-to-end enterprise-grade application in Python. You will learn how to effectively implement Python features and design patterns that will positively impact your application lifecycle. The book also covers advanced concurrency techniques that will help you build a RESTful application with an optimized frontend. Given that security and stability are the foundation for an enterprise application, you’ll be trained on effective testing, performance analysis, and security practices, and understand how to embed them in your codebase during the initial phase. You’ll also be guided in how to move on from a monolithic architecture to one that is service oriented, leveraging microservices and serverless deployment techniques. By the end of the book, you will have become proficient at building efficient enterprise applications in Python. What you will learn *Understand the purpose of design patterns and their impact on application lifecycle *Build applications that can handle large amounts of data-intensive operations *Uncover advanced concurrency techniques and discover how to handle a large number of requests in production *Optimize frontends to improve the client-side experience of your application *Effective testing and performance profiling techniques to detect issues in applications early in the development cycle *Build applications with a focus on security *Implement large applications as microservices to improve scalability Who this book is for If you’re a developer who wants to build enterprise-grade applications, this book is for you. Basic to intermediate-level of programming experience with Python and database systems is required to understand the concepts covered in this book.

Learn a modern approach to data analysis using Python to harness the power of programming and AI across your data. Detailed case studies bring this modern approach to life across visual data, social media, graph algorithms, and time series analysis. Key Features *Bridge your data analysis with the power of programming, complex algorithms, and AI *Use Python and its extensive libraries to power your way to new levels of data insight *Work with AI algorithms, TensorFlow, graph algorithms, NLP, and financial time series *Explore this modern approach across with key industry case studies and hands-on projects Book Description Data Analysis with Python offers a modern approach to data analysis so that you can work with the latest and most powerful Python tools, AI techniques, and open source libraries. Industry expert David Taieb shows you how to bridge data science with the power of programming and algorithms in Python. You'll be working with complex algorithms, and cutting-edge AI in your data analysis. Learn how to analyze data with hands-on examples using Python-based tools and Jupyter Notebook. You'll find the right balance of theory and practice, with extensive code files that you can integrate right into your own data projects. Explore the power of this approach to data analysis by then working with it across key industry case studies. Four fascinating and full projects connect you to the most critical data analysis challenges you’re likely to meet in today. The first of these is an image recognition application with TensorFlow – embracing the importance today of AI in your data analysis. The second industry project analyses social media trends, exploring big data issues and AI approaches to natural language processing. The third case study is a financial portfolio analysis application that engages you with time series analysis - pivotal to many data science applications today. The fourth industry use case dives you into graph algorithms and the power of programming in modern data science. You'll wrap up with a thoughtful look at the future of data science and how it will harness the power of algorithms and artificial intelligence. What you will learn *A new toolset that has been carefully crafted to meet for your data analysis challenges *Full and detailed case studies of the toolset across several of today’s key industry contexts *Become super productive with a new toolset across Python and Jupyter Notebook *Look into the future of data science and which directions to develop your skills next Who this book is for This book is for developers wanting to bridge the gap between them and data scientists. Introducing PixieDust from its creator, the book is a great desk companion for the accomplished Data Scientist. Some fluency in data interpretation and visualization is assumed. It will be helpful to have some knowledge of Python, using Python libraries, and some proficiency in web development.

Patricia MacLachlan, beloved author of the Newbery Medal-winning Sarah, Plain and Tall, has crafted another lyrical and touching novel for young readers about finding hope after the loss of a loved one.Declan O’Brien always had a gentle word to share, odd phrases he liked to repeat, and songs to sing while he played basketball. His favorite song was "Dona Nobis Pacem," “Grant Us Peace.” His family loved him deeply and always knew they were loved in return.But a terrible accident one day changes their lives forever, and Fiona and Finn O’Brien are left without a father. Their mother is at a loss. What words are there to guide them through such overwhelming grief?At the suggestion of their friend Luke, Fiona and Finn volunteer at an animal rescue shelter, where they meet two sweet dogs who are in need of comfort, too. Perhaps with time, patience, and their father’s gentle words in their hearts, hope will spark once more.* Junior Library Guild Selection * Bank Street Best Children's Book of the Year 2019 (9-12) *

From the critically acclaimed author of Waiting for Normal and All Rise for the Honorable Perry T. Cook, Leslie Connor, comes a deeply poignant and beautifully crafted story about self-reliance, redemption, and hope.Mason Buttle is the biggest, sweatiest kid in his grade, and everyone knows he can barely read or write. Mason’s learning disabilities are compounded by grief. Fifteen months ago, Mason’s best friend, Benny Kilmartin, turned up dead in the Buttle family’s orchard.An investigation drags on, and Mason, honest as the day is long, can’t understand why Lieutenant Baird won’t believe the story Mason has told about that day. Both Mason and his new friend, tiny Calvin Chumsky, are relentlessly bullied by the other boys in their neighborhood, so they create an underground haven for themselves. When Calvin goes missing, Mason finds himself in trouble again. He’s desperate to figure out what happened to Calvin and, eventually, Benny. But will anyone believe him? National Book Award Finalist * ALA Schneider Family Book Award * 2019 ALSC Notable Children’s Book * Publishers Weekly Best Books of 2018 * 2019-2020 Nebraska Golden Sower Award * Amazon Best Books of 2018 * Kirkus Best of Children's 2018 * New York Public Library Best Books 2018 * Chicago Public Library Best of the Best Books 2018 * 2018 Nerdy Book Club Middle Grade Winner * South Carolina Junior Book Award Nominee * 2020 Colorado Children's Book Award Nominee * Bank Street Best Children's Book of the Year 2019 (9-12) * 2020 Grand Canyon Reader Award Nominee * 2020-2021 Missouri Association of School Librarians Mark Twain Readers Award Preliminary Nominee * 2020-2021 Indiana Young Hoosier Book Award Nominee *