The first edition of Bearing Witness brought together for the first time 176 slave narratives from the state of Arkansas. Now, this new edition adds ten previously undiscovered accounts. No one knew the truths of slavery better than the slaves themselves, but no one consulted them until the 1930s. Then, recognizing that this generation of unique witnesses would soon be lost to history, the Works Progress Administration's Federal Writers' Project acted to interview as many former slaves as possible. In a continuation of the project's interest in the life histories of ordinary people, writers interviewed over two thousand former slaves, more than a third of them in Arkansas. These oral histories were first published in the 1970s in a thirty-nine-volume series organized by state, and they transformed America's understanding of slavery. They have offered crucial evidence on a variety of other topics as well: the Civil War, Reconstruction, agricultural practices, everyday life, and oral history itself. But some former Arkansas slaves were interviewed in Texas, Oklahoma, and other states, so their narratives were published in those other collections. And more than half of the testimonies in the Arkansas volume were interviews with people who had moved to Arkansas after freedom. Folklorist George Lankford combed all of the state collections for the testimonies properly belonging to Arkansas and deleted from this state's collection the testimony of later migrants

The quest to pinpoint the age of the Earth is nearly as old as humanity itself. For most of history, people trusted mythology or religion to provide the answer, even though nature abounds with clues to the past of the Earth and the stars. In A Natural History of Time, geophysicist Pascal Richet tells the fascinating story of how scientists and philosophers examined those clues and from them built a chronological scale that has made it possible to reconstruct the history of nature itself.Richet begins his story with mythological traditions, which were heavily influenced by the seasons and almost uniformly viewed time cyclically. The linear history promulgated by Judaism, with its story of creation, was an exception, and it was that tradition that drove early Christian attempts to date the Earth. For instance, in 169 CE, the bishop of Antioch, for instance declared that the world had been in existence for quote;5,698 years and the odd months and days quote;Until the mid-eighteenth century, such natural timescales derived from biblical chronologies prevailed, but, Richet demonstrates, with the Scientific Revolution geological and astronomical evidence for much longer timescales began to accumulate. Fossils and the developing science of geology provided compelling evidence for periods of millions and millions of years-a scale that even scientists had difficulty grasping. By the end of the twentieth century, new tools such as radiometric dating had demonstrated that the solar system is four and a half billion years old, and the universe itself about twice that, though controversial questions remain.The quest for time is a story of ingenuity and determination, and like a geologist, Pascal Richet carefully peels back the strata of that history, giving us a chance to marvel at each layer and truly appreciate how far our knowledge-and our planet-have come.

establishment of the modern synthesis in the 1940s and the pioneering work of George Gaylord Simpson, Ernst Mayr, and Theodosius Dobzhansky, as well as the subsequent efforts of Stephen Jay Gould, David Raup, and James Valentine, paleontology became embedded in biology and emerged as paleobiology, a first-rate discipline central to evolutionary studies. Pairing contributions from some of the leading actors of the transformation with overviews from historians and philosophers of science, the essays here capture the excitement of the seismic changes in the discipline. In so doing, David Sepkoski and Michael Ruse harness the energy of the past to call for further study of the conceptual development of modern paleobiology.

Life is short. This indisputable fact of existence has driven human ingenuity since antiquity, whether through efforts to lengthen our lives with medicine or shorten the amount of time we spend on work using technology. Alongside this struggle to manage the pressure of life's ultimate deadline, human perception of the passage and effects of time has also changed. In On Borrowed Time, Harald Weinrich examines an extraordinary range of materials-from Hippocrates to Run Lola Run-to put forth a new conception of time and its limits that, unlike older models, is firmly grounded in human experience. Weinrich's analysis of the roots of the word time connects it to the temples of the skull, demonstrating that humans first experienced time in the beating of their pulses. Tracing this corporeal perception of time across literary, religious, and philosophical works, Weinrich concludes that time functions as a kind of sixth sense-the crucial sense that enables the other five. Written with Weinrich's customary narrative elegance, On Borrowed Time is an absorbing-and, fittingly, succinct-meditation on life's inexorable brevity.

In Studying Human Behavior, Helen E. Longino enters into the complexities of human behavioral research, a domain still dominated by the age-old debate of "e;nature versus nurture."e; Rather than supporting one side or another or attempting to replace that dichotomy with a different framework for understanding behavior, Longino focuses on how scientists study it, specifically sexual behavior and aggression, and asks what can be known about human behavior through empirical investigation.?She dissects five approaches to the study of behavior-quantitative behavioral genetics, molecular behavior genetics, developmental psychology, neurophysiology and anatomy, and social/environmental methods-highlighting the underlying assumptions of these disciplines, as well as the different questions and mechanisms each addresses. She also analyzes efforts to integrate different approaches. Longino concludes that there is no single "e;correct"e; approach but that each contributes to our overall understanding of human behavior. In addition, Longino reflects on the reception and transmission of this behavioral research in scientific, social, clinical, and political spheres. A highly significant and innovative study that bears on crucial scientific questions, Studying Human Behavior will be essential reading not only for scientists and philosophers but also for science journalists and anyone interested in the engrossing challenges of understanding human behavior.

Students in special education programs can have widely divergent experiences. For some, special education amounts to a dumping ground where schools unload their problem students, while for others, it provides access to services and accommodations that drastically improve chances of succeeding in school and beyond. Distinguishing Disability argues that this inequity in treatment is directly linked to the disparity in resources possessed by the students' parents.Since the mid-1970s, federal law has empowered parents of public school children to intervene in virtually every aspect of the decision making involved in special education. However, Colin Ong-Dean reveals that this power is generally available only to those parents with the money, educational background, and confidence needed to make effective claims about their children's disabilities and related needs. Ong-Dean documents this class divide by examining a wealth of evidence, including historic rates of learning disability diagnosis, court decisions, and advice literature for parents of disabled children. In an era of expanding special education enrollment, Distinguishing Disability is a timely analysis of the way this expansion has created new kinds of inequality.

Lucius Annaeus Seneca (4 BCE-65 CE) was a Roman Stoic philosopher, dramatist, statesman, and adviser to the emperor Nero, all during the Silver Age of Latin literature. The Complete Works of Lucius Annaeus Seneca is a fresh and compelling series of new English-language translations of his works in eight accessible volumes. Edited by world-renowned classicists Elizabeth Asmis, Shadi Bartsch, and Martha C. Nussbaum, this engaging collection restores Seneca-whose works have been highly praised by modern authors from Desiderius Erasmus to Ralph Waldo Emerson-to his rightful place among the classical writers most widely studied in the humanities.Written near the end of Seneca's life, Natural Questions is a work in which Seneca expounds and comments on the natural sciences of his day-rivers and earthquakes, wind and snow, meteors and comets-offering us a valuable look at the ancient scientific mind at work. The modern reader will find fascinating insights into ancient philosophical and scientific approaches to the physical world and also vivid evocations of the grandeur, beauty, and terror of nature.

A work of striking originality bursting with unexpected insights, The Human Condition is in many respects more relevant now than when it first appeared in 1958. In her study of the state of modern humanity, Hannah Arendt considers humankind from the perspective of the actions of which it is capable. The problems Arendt identified then-diminishing human agency and political freedom, the paradox that as human powers increase through technological and humanistic inquiry, we are less equipped to control the consequences of our actions-continue to confront us today. This new edition, published to coincide with the fortieth anniversary of its original publication, contains an improved and expanded index and a new introduction by noted Arendt scholar Margaret Canovan which incisively analyzes the book's argument and examines its present relevance. A classic in political and social theory, The Human Condition is a work that has proved both timeless and perpetually timely.Hannah Arendt (1906-1975) was one of the leading social theorists in the United States. Her Lectures on Kant's Political Philosophy and Love and Saint Augustine are also published by the University of Chicago Press.

In this groundbreaking work, Richard L. Velkley examines the complex philosophical relationship between Martin Heidegger and Leo Strauss. Velkley argues that both thinkers provide searching analyses of the philosophical tradition's origins in radical questioning. For Heidegger and Strauss, the recovery of the original premises of philosophy cannot be separated from rethinking the very possibility of genuine philosophizing.?Common views of the influence of Heidegger's thought on Strauss suggest that, after being inspired early on by Heidegger's dismantling of the philosophical tradition, Strauss took a wholly separate path, spurning modernity and pursuing instead a renewal of Socratic political philosophy. Velkley rejects this reading and maintains that Strauss's engagement with the challenges posed by Heidegger-as well as by modern philosophy in general-formed a crucial and enduring framework for his lifelong philosophical project. More than an intellectual biography or a mere charting of influence, Heidegger, Strauss, and the Premises of Philosophy is a profound consideration of these two philosophers' reflections on the roots, meaning, and fate of Western rationalism.

In Michael Polanyi and His Generation, Mary Jo Nye investigates the role that Michael Polanyi and several of his contemporaries played in the emergence of the social turn in the philosophy of science. This turn involved seeing science as a socially based enterprise that does not rely on empiricism and reason alone but on social communities, behavioral norms, and personal commitments. Nye argues that the roots of the social turn are to be found in the scientific culture and political events of Europe in the 1930s, when scientific intellectuals struggled to defend the universal status of scientific knowledge and to justify public support for science in an era of economic catastrophe, Stalinism and Fascism, and increased demands for applications of science to industry and social welfare.?At the center of this struggle was Polanyi, who Nye contends was one of the first advocates of this new conception of science. Nye reconstructs Polanyi's scientific and political milieus in Budapest, Berlin, and Manchester from the 1910s to the 1950s and explains how he and other natural scientists and social scientists of his generation-including J. D. Bernal, Ludwik Fleck, Karl Mannheim, and Robert K. Merton-and the next, such as Thomas Kuhn, forged a politically charged philosophy of science, one that newly emphasized the social construction of science.

Imprisoned in the Tower of London after the death of Queen Elizabeth in 1603, Sir Walter Ralegh spent seven years producing his massive History of the World.?Created with the aid of a library of more than five hundred books that he was allowed to keep in his quarters, this incredible work of English vernacular would become a best seller, with nearly twenty editions, abridgments, and continuations issued in the years that followed.Nicholas Popper uses Ralegh's?History?as a touchstone in this lively exploration of the culture of history writing and historical thinking in the late Renaissance. From Popper we learn why early modern Europeans ascribed heightened value to the study of the past and how scholars and statesmen began to see historical expertise as not just a foundation for political practice and theory, but as a means of advancing their power in the courts and councils of contemporary Europe. The rise of historical scholarship during this period encouraged the circulation of its methods to other disciplines, transforming Europe's intellectual-and political-regimes. More than a mere study of Ralegh's History of the World, Popper's book reveals how the methods that historians devised to illuminate the past structured the dynamics of early modernity in Europe and England.

There have been many Spinozas over the centuries: atheist, romantic pantheist, great thinker of the multitude, advocate of the liberated individual, and rigorous rationalist. The common thread connecting all of these clashing perspectives is Spinoza's naturalism, the idea that humanity is part of nature, not above it.?In this sophisticated new interpretation of Spinoza's iconoclastic philosophy, Hasana Sharp draws on his uncompromising naturalism to rethink human agency, ethics, and political practice. Sharp uses Spinoza to outline a practical wisdom of "e;renaturalization,"e; showing how ideas, actions, and institutions are never merely products of human intention or design, but outcomes of the complex relationships among natural forces beyond our control. This lack of a metaphysical or moral division between humanity and the rest of nature, Sharp contends, can provide the basis for an ethical and political practice free from the tendency to view ourselves as either gods or beasts.?Sharp's groundbreaking argument critically engages with important contemporary thinkers-including deep ecologists, feminists, and race and critical theorists-making Spinoza and the Politics of Renaturalization vital for a wide range of scholars.

Heightened awareness of the problem of sexual abuse has led to deep anxiety over adults touching children-in nearly any context. Though our society has moved toward increasingly strict enforcement of this taboo, studies have shown that young children need regular human contact, and the benefits of breastfeeding have been widely extolled. Exploring the complicated history of love, desire, gender, sexuality, parenthood, and inequality, Erotic Attunement probes the disquieting issue of how we can draw a clear line between natural affection toward children and perverse exploitation of them.Cristina L. H. Traina demonstrates that we cannot determine what is wrong about sexual abuse without first understanding what is good about appropriate sensual affection. Pondering topics such as the importance of touch in nurturing children, the psychology of abuse and victimhood, and recent ideologies of motherhood, she argues that we must expand our philosophical and theological language of physical love and make a distinction between sexual love and erotic love. Taking on theological and ethical arguments over the question of sexuality between unequals, she arrives at the provocative conclusion that it can be destructive to completely bar eroticism from these relationships.

In Reading Darwin in Arabic, Marwa Elshakry questions current ideas about Islam, science, and secularism by exploring the ways in which Darwin was read in Arabic from the late 1860s to the mid-twentieth century. Borrowing from translation and reading studies and weaving together the history of science with intellectual history, she explores Darwin's global appeal from the perspective of several generations of Arabic readers and shows how Darwin's writings helped alter the social and epistemological landscape of the Arab learned classes.?Providing a close textual, political, and institutional analysis of the tremendous interest in Darwin's ideas and other works on evolution, Elshakry shows how, in an age of massive regional and international political upheaval, these readings were suffused with the anxieties of empire and civilizational decline. The politics of evolution infiltrated Arabic discussions of pedagogy, progress, and the very sense of history. They also led to a literary and conceptual transformation of notions of science and religion themselves. Darwin thus became a vehicle for discussing *ural exegesis, the conditions of belief, and cosmological views more broadly. The book also acquaints readers with Muslim and Christian intellectuals, bureaucrats, and theologians, and concludes by exploring Darwin's waning influence on public and intellectual life in the Arab world after World War I.?Reading Darwin in Arabic is an engaging and powerfully argued reconceptualization of the intellectual and political history of the Middle East.

Who among us hasn't marveled at the diversity and beauty of shellsOr picked one up, held it to our ear, and then gazed in wonder at its shape and hueMany a lifelong shell collector has cut teeth (and toes) on the beaches of the Jersey Shore, the Outer Banks, or the coasts of Sanibel Island. Some have even dived to the depths of the ocean. But most of us are not familiar with the biological origin of shells, their role in explaining evolutionary history, and the incredible variety of forms in which they come.Shells are the external skeletons of mollusks, an ancient and diverse phylum of invertebrates that are in the earliest fossil record of multicellular life over 500 million years ago. There are over 100,000 kinds of recorded mollusks, and some estimate that there are over amillion more that have yet to be discovered. Some breathe air, others live in fresh water, but most live in the ocean. They range in size from a grain of sand to a beach ball and in weight from a few grams to several hundred pounds. And in this lavishly illustrated volume, they finally get their full due.The Book of Shells offers a visually stunning and scientifically engaging guide to six hundred of the most intriguing mollusk shells, each chosen to convey the range of shapes and sizes that occur across a range of species. Each shell is reproduced here at its actual size, in full color, and is accompanied by an explanation of the shell's range, distribution, abundance, habitat, and operculum-the piece that protects the mollusk when it's in the shell. Brief scientific and historical accounts of each shell and related species include fun-filled facts and anecdotes that broaden its portrait.The Matchless Cone, for instance, or Conus cedonulli, was one of the rarest shells collected during the eighteenth century. So much so, in fact, that a specimen in 1796 was sold for more than six times as much as a painting by Vermeer at the same auction. But since the advent of scuba diving, this shell has become far more accessible to collectors-though not without certain risks. Some species of Conus produce venom that has caused more than thirty known human deaths.The Zebra Nerite, the Heart Cockle, the Indian Babylon, the Junonia, the Atlantic Thorny Oyster-shells from habitats spanning the poles and the tropics, from the highest mountains to the ocean's deepest recesses, are all on display in this definitive work.

"e;I took my road with no little pride of fear; one morning I feared very sharply, as I saw what looked like a rising shroud over a wooden cross in the clustering mist. Horror! But on a closer study I realized that the apparition was only a flannel gas helmet. . . . What an age since 1914!"e;In Undertones of War, one of the finest autobiographies to come out of World War I, the acclaimed poet Edmund Blunden records his devastating experiences in combat. After enlisting at the age of twenty, he took part in the disastrous battles at the Somme, Ypres, and Passchendaele, describing them as "e;murder, not only to the troops but to their singing faiths and hopes."e;All the horrors of trench warfare, all the absurdity and feeble attempts to make sense of the fighting, all the strangeness of observing war as a writer-of being simultaneously soldier and poet-pervade Blunden's memoir. In steely-eyed prose as richly allusive as any poetry, he tells of the endurance and despair found among the men of his battalion, including the harrowing acts of bravery that won him the Military Cross.Now back in print for American readers, the volume includes a selection of Blunden's war poems that unflinchingly juxtapose death in the trenches with the beauty of Flanders's fields. Undertones of War deserves a place on anyone's bookshelf between Siegfried Sassoon's poetry and Robert Graves's Goodbye to All That.

Design, test, and debug your apps using Android StudioAbout This BookSee what Material design is about and how to apply it your appsExplore the possibilities to develop apps that works on any type of deviceA step-by-step practical guide that will help you build improved applications, change their look, and debug them Who This Book Is For This book is for developers that are already familiar with programming concepts and have already started creating apps for the Android platform, for example, by using the Eclipse IDE. It is for developers who intend to use Android Studio as their primary IDE or want to use Android Studio more efficiently.What You Will LearnDevelop Android Studio applications using GenymotionApply the concepts of Material design to your applicationsUse memory monitoring tools to tweak performanceBuild applications for Android WearableCapture images, video, or audio within your Android appUse content providers to display dataBuild apps with a cloud-based backendCreate media-related apps that will run on phones, phablets, tablets, and TVs In Detail This book starts with an introduction of Android Studio and why you should use this IDE rather than Eclipse. Moving ahead, it teaches you to build a simple app that requires no backend setup but uses Google Cloud or Parse instead. After that, you will learn how to create an Android app that can send and receive text and images using Google Cloud or Parse as a backend. It explains the concepts of Material design and how to apply them to an Android app. Also, it shows you how to build an app that runs on an Android wear device. Later, it explains how to build an app that takes advantage of the latest Android SDK while still supporting older Android versions. It also demonstrates how the performance of an app can be improved and how memory management tools that come with the Android Studio IDE can help you achieve this. By the end of the book, you will be able to develop high quality apps with a minimum amount of effort using the Android Studio IDE.Style and approach This is a practical guide full of challenges and many real-world examples that demonstrate interesting development concepts. Besides smartphones and tablets, it also covers Android wearable devices and Android TV. Although strongly recommended, it is not necessary to own any Android device yourself.

Make the most of R’s dynamic capabilities and implement web applications with ShinyAbout This BookPresent interactive data visualizations in R within the Shiny frameworkConstruct web dashboards in a simple, intuitive, but fully flexible environmentApply your skills to create a real-world web application with this step-by-step guide Who This Book Is For If you are a data scientist who needs a platform to show your results to a broader audience in an attractive and visual way, or a web developer with no prior experience in R or Shiny, this is the book for you.What You Will LearnComprehend many useful functions, such as lapply and apply, to process data in RWrite and structure different files to create a basic dashboardDevelop graphics in R using popular graphical libraries such as ggplot2 and GoogleVisMount a dashboard on a Linux ServerIntegrate Shiny with non-R-native visualization, such as D3.jsDesign and build a web application In Detail R is nowadays one of the most used tools in data science. However, along with Shiny, it is also gaining territory in the web application world, due to its simplicity and flexibility. Shiny is a framework that enables the creation of interactive visualizations written entirely in R and can be displayed in almost any ordinary web browser. It is a package from RStudio, which is an IDE for R. From the fundamentals of R to the administration of multi-concurrent, fully customized web applications, this book explains how to achieve your desired web application in an easy and gradual way. You will start by learning about the fundamentals of R, and will move on to looking at simple and practical examples. These examples will enable you to grasp many useful tools that will assist you in solving the usual problems that can be faced when developing data visualizations. You will then walk through the integration of Shiny with R in general and view the different visualization possibilities out there. Finally, you will put your skills to the test and create your first web application!Style and approach This is a comprehensive, step-by-step guide that will allow you to learn and make full use of R and Shiny’s capabilities in a gradual way, together with clear, applied examples.

Integrate Elasticsearch into Hadoop to effectively visualize and analyze your dataAbout This BookBuild production-ready analytics applications by integrating the Hadoop ecosystem with ElasticsearchLearn complex Elasticsearch queries and develop real-time monitoring Kibana dashboards to visualize your dataUse Elasticsearch and Kibana to search data in Hadoop easily with this comprehensive, step-by-step guide Who This Book Is For This book is targeted at Java developers with basic knowledge on Hadoop. No prior Elasticsearch experience is expected.What You Will LearnSet up the Elasticsearch-Hadoop environmentImport HDFS data into Elasticsearch with MapReduce jobsPerform full-text search and aggregations efficiently using ElasticsearchVisualize data and create interactive dashboards using KibanaCheck and detect anomalies in streaming data using Storm and ElasticsearchInject and classify real-time streaming data into ElasticsearchGet production-ready for Elasticsearch-Hadoop based projectsIntegrate with Hadoop eco-system such as Pig, Storm, Hive, and Spark In Detail The Hadoop ecosystem is a de-facto standard for processing terra-bytes and peta-bytes of data. Lucene-enabled Elasticsearch is becoming an industry standard for its full-text search and aggregation capabilities. Elasticsearch-Hadoop serves as a perfect tool to bridge the worlds of Elasticsearch and Hadoop ecosystem to get best out of both the worlds. Powered with Kibana, this stack makes it a cakewalk to get surprising insights out of your massive amount of Hadoop ecosystem in a flash. In this book, you'll learn to use Elasticsearch, Kibana and Elasticsearch-Hadoop effectively to analyze and understand your HDFS and streaming data. You begin with an in-depth understanding of the Hadoop, Elasticsearch, Marvel, and Kibana setup. Right after this, you will learn to successfully import Hadoop data into Elasticsearch by writing MapReduce job in a real-world example. This is then followed by a comprehensive look at Elasticsearch essentials, such as full-text search analysis, queries, filters and aggregations; after which you gain an understanding of creating various visualizations and interactive dashboard using Kibana. Classifying your real-world streaming data and identifying trends in it using Storm and Elasticsearch are some of the other topics that we'll cover. You will also gain an insight about key concepts of Elasticsearch and Elasticsearch-hadoop in distributed mode, advanced configurations along with some common configuration presets you may need for your production deployments. You will have “Go production checklist” and high-level view for cluster administration for post-production. Towards the end, you will learn to integrate Elasticsearch with other Hadoop eco-system tools, such as Pig, Hive and Spark.Style and approach A concise yet comprehensive approach has been adopted with real-time examples to help you grasp the concepts easily.

Create a high-quality first person shooter game using the Unity game engine and the popular UFPS and Probuilder frameworksAbout This BookLearn how to use Unity in conjunction with UFPS and ProBuilder to create a high-quality game quicklyCreate both interior and exterior environmentsA step-by step guide to building a project with clear examples and instructions to create a number of interesting scenarios Who This Book Is For This book is for those who want to create an FPS game in Unity and gain knowledge on how to customize it to be their very own. If you are familiar with the basics of Unity, you will have an easier time, but it should make it possible for someone with no prior experience to learn Unity at an accelerated pace.What You Will LearnUse UFPS to build custom weapons with custom meshes and behaviorsExplore level design as you prototype levels, making use of Prototype to build levels out quicklyBuild environments that are realistic as possible while keeping peak performance and repetitiveness downReview tips and tricks on how to create environments using both terrain for outdoor areas and a modular workflow for interiorsDevelop a number of different encounters that your players can fight against, from a simple turret enemy to complex AI characters from Shooter AIDiscover how to create unique objects such as exploding barrels and objects you can interact withCreate a custom GUI to help your game stand out from the crowdPackage your game for release, create an installer, and get your game out into the world In Detail Unity, available in free and pro versions, is one of the most popular third-party game engines available. It is a cross-platform game engine, making it easy to write your game once and then port it to PC, consoles, and even the web, making it a great choice for both indie and AAA developers. Building an FPS Game in Unity takes readers on an exploration of how to use Unity to create a 3D first person shooter (FPS) title, leveraging the powerful UFPS framework by VisionPunk and Prototype/ProBuilder 2.0 by ProCore3D. After some setting up, you will start by learning how to create custom weapons, prototype levels, create exterior and interior environments, and breathe life into our levels. We will then add polish to the levels. Finally, we will create a custom GUI and menus for our title to create a complete package.Style and approach An easy-to-follow guide with each project containing step-by-step explanations, diagrams, screenshots, and downloadable material. Concepts in Unity and C# are explained as they are used and for the more inquisitive, there are more details on the concepts used with additional external resources to learn from.

Build robust and scalable iOS and Mac OS X game applicationsAbout This BookLearn to use and implement the 23 Gang of Four design patterns using Swift 2Design and architect your code for Swift application developmentUnderstand the role, generic UML design, and participants in the class diagram of the pattern by implementing them in a step-by-step approach Who This Book Is For This book is intended for competent Swift developers who want to apply enduring design patterns with Swift to structure and scale their application code.What You Will LearnChoose the appropriate pattern depending on the problem to be solvedUnderstand the generic class diagram of each of the 23 GoF patterns and how each object participates in the patternUse Swift to implement these patterns even though the language doesn’t provide all of the object-oriented programming concepts such as abstract class, interface, and so onArchitect your software to avoid the overuse of memory, time spent on calculations, or high network trafficFind the best way to organize your code to make it more secure from the outside worldPrepare your code to make it more flexible when the consumer changes or the third-party component hidden code changesStructure your code to change the algorithm to apply at runtimeDeliver Flyweight responsibility to your objects In Detail Swift is a multi-paradigm language. It has expressive features familiar to those used to work with modern functional languages, while also keeping the object-oriented features of Objective-C. It remains compatible with Apple’s legacy codes and frameworks. A design pattern systematically names, motivates, and explains a general design that addresses a recurring design problem in object-oriented systems. It describes the problem, the solution, when to apply the solution, and its consequences. It also gives implementation hints and examples. Knowledge about design patterns is also one of the best ways to make you different compared to other low-level developers. This book shows you how to use Swift 2 to learn about 23 Gang of Four (GoF) design patterns, and is organized into three categories. The book will present you the five creational patterns, followed by the seven structural patterns, and finishing with the 11 behavioral patterns as defined by the GoF. Each chapter will introduce the pattern by defining its role, which common problems the pattern should be used for, its generic UML representation, how each objects presented in the class diagram participate in the pattern, and what the role of each of these objects is. The book then presents you with a concrete case as an illustration that will be used to implement the pattern using Swift.Style and approach A step-by-step tutorial completed with screenshots and code highlights wherever necessary. Each chapter discusses one or more patterns with its definitions and a simple-to-follow illustration case using a playground or XCText project to implement it with Swift.