Politicians and marketers present shoddy evidence for dubious claims all the time. But smart people make mistakes too, and when it comes to statistics, plenty of otherwise great scientists--yes, even those published in peer-reviewed journals--are doing statistics wrong."Statistics Done Wrong" comes to the rescue with cautionary tales of all-too-common statistical fallacies. It'll help you see where and why researchers often go wrong and teach you the best practices for avoiding their mistakes.In this book, you'll learn: - Why "statistically significant" doesn't necessarily imply practical significance- Ideas behind hypothesis testing and regression analysis, and common misinterpretations of those ideas- How and how not to ask questions, design experiments, and work with data- Why many studies have too little data to detect what they're looking for-and, surprisingly, why this means published results are often overestimates- Why false positives are much more common than "significant at the 5% level" would suggestBy walking through colorful examples of statistics gone awry, the book offers approachable lessons on proper methodology, and each chapter ends with pro tips for practicing scientists and statisticians. No matter what your level of experience, "Statistics Done Wrong" will teach you how to be a better analyst, data scientist, or researcher.

    The term “complexity” can be misleading, however, because what makes West’s discoveries so beautiful is that he has found an underlying simplicity that unites the seemingly complex and diverse phenomena of living systems, including our bodies, our cities and our businesses. Fascinated by issues of aging and mortality, West applied the rigor of a physicist to the biological question of why we live as long as we do and no longer. The result was astonishing, and changed science, creating a new understanding of energy use and metabolism: West found that despite the riotous diversity in the sizes of mammals, they are all, to a large degree, scaled versions of each other. If you know the size of a mammal, you can use scaling laws to learn everything from how much food it eats per day, what its heart-rate is, how long it will take to mature, its lifespan, and so on. Furthermore, the efficiency of the mammal’s circulatory systems scales up precisely based on weight: if you compare a mouse, a human and an elephant on a logarithmic graph, you find with every doubling of average weight, a species gets 25% more efficient—and lives 25% longer. This speaks to everything from how long we can expect to live to how many hours of sleep we need. Fundamentally, he has proven, the issue has to do with the fractal geometry of the networks that supply energy and remove waste from the organism's body. West's work has been game-changing for biologists, but then he made the even bolder move of exploring his work's applicability to cities. Cities, too, are constellations of networks and laws of scalability relate with eerie precision to them. For every doubling in a city's size, the city needs 15% less road, electrical wire, and gas stations to support the same population. More amazingly, for every doubling in size, cities produce 15% more patents and more wealth, as well as 15% more crime and disease. This broad pattern lays the groundwork for a new science of cities. Recently, West has applied his revolutionary work on cities and biological life to the business world. This investigation has led to powerful insights into why some companies thrive while others fail. The implications of these discoveries are far-reaching, and are just beginning to be explored. Scale is a thrilling scientific adventure story about the elemental natural laws that bind us together in simple but profound ways. Through the brilliant mind of Geoffrey West, we can envision how cities, companies and biological life alike are dancing to the same simple, powerful tune, however diverse and unrelated they are to each other.From the Hardcover edition.

    Tech companies in general lack the experience, tools, texts, and frameworks to do it well. And the handful of books that share tips and tricks of engineering management don t explain how to supervise employees in the face of growth and change.In this book, author Camille Fournier takes you through the stages of technical management, from mentoring interns to working with the senior staff. You ll get actionable advice for approaching various obstacles in your path, whether you re a new manager, a mentor, or a more experienced leader looking for fresh advice. Pick up this book and learn how to become a better manager and leader in your organization. * Discover how to manage small teams and large/multi-level teams * Understand how to build and bootstrap a unifying culture in teams * Deal with people problems and learn how to mentor other managers and new leaders * Learn how to manage yourself: avoid common pitfalls that challenge many leaders * Obtain several practices that you can incorporate and practice along the way

    With this hands-on guide, you'll learn how to write effective, idiomatic Python code by leveraging its best and possibly most neglected features. Author Luciano Ramalho takes you through Python's core language features and libraries, and shows you how to make your code shorter, faster, and more readable at the same time.Many experienced programmers try to bend Python to fit patterns they learned from other languages, and never discover Python features outside of their experience. With this book, those Python programmers will thoroughly learn how to become proficient in Python 3.This book covers:Python data model: understand how special methods are the key to the consistent behavior of objectsData structures: take full advantage of built-in types, and understand the text vs bytes duality in the Unicode ageFunctions as objects: view Python functions as first-class objects, and understand how this affects popular design patternsObject-oriented idioms: build classes by learning about references, mutability, interfaces, operator overloading, and multiple inheritanceControl flow: leverage context managers, generators, coroutines, and concurrency with the concurrent.futures and asyncio packagesMetaprogramming: understand how properties, attribute descriptors, class decorators, and metaclasses work"

    A world that is as creative and complex as it is dangerous and disturbing. A world that is much closer than you think.The dark net is an underworld that stretches from popular social media sites to the most secretive corners of the encrypted web. It is a world that frequently appears in newspaper headlines, but one that is little understood, and rarely explored. The Dark Net is a revelatory examination of the internet today, and of its most innovative and dangerous subcultures: trolls and pornographers, drug dealers and hackers, political extremists and computer scientists, Bitcoin programmers and self-harmers, libertarians and vigilantes.Based on extensive first-hand experience, exclusive interviews and shocking documentary evidence, The Dark Net offers a startling glimpse of human nature under the conditions of freedom and anonymity, and shines a light on an enigmatic and ever-changing world.

    With this concise book, you will learn how to use the latest version of this W3C standard to retrieve and manipulate the increasing amount of public and private data available via SPARQL endpoints. Several open source and commercial tools already support SPARQL, and this introduction gets you started right away.Begin with how to write and run simple SPARQL 1.1 queries, then dive into the language's powerful features and capabilities for manipulating the data you retrieve. Learn what you need to know to add to, update, and delete data in RDF datasets, and give web applications access to this data.Understand SPARQL’s connection with RDF, the semantic web, and related specificationsQuery and combine data from local and remote sourcesCopy, convert, and create new RDF dataLearn how datatype metadata, standardized functions, and extension functions contribute to your queriesIncorporate SPARQL queries into web-based applications

    With this book, you'll get a candid and insightful look at how software is constructed and maintained by some of the world's leading practitioners.Titus Winters, Tom Manshreck, and Hyrum K. Wright, software engineers and a technical writer at Google, reframe how software engineering is practiced and taught: from an emphasis on programming to an emphasis on software engineering, which roughly translates to programming over time.You'll learn:Fundamental differences between software engineering and programmingHow an organization effectively manages a living codebase and efficiently responds to inevitable changeWhy culture (and recognizing it) is important, and how processes, practices, and tools come into play

    The Art of Game Design: A Book of Lenses shows that the same basic principles of psychology that work for board games, card games and athletic games also are the keys to making top-quality video games. Good game design happens when you view your game from many different perspectives, or lenses. While touring through the unusual territory that is game design, this book gives the reader one hundred of these lenses—one hundred sets of insightful questions to ask yourself that will help make your game better. These lenses are gathered from fields as diverse as psychology, architecture, music, visual design, film, software engineering, theme park design, mathematics, writing, puzzle design, and anthropology. Anyone who reads this book will be inspired to become a better game designer—and will understand how to do it.

    The evidence is all around us: Our system of justice is fundamentally broken.   But it’s not for the reasons we tend to think, as law professor Adam Benforado argues in this eye-opening, galvanizing book. Even if the system operated exactly as it was designed to, we would still end up with wrongful convictions, trampled rights, and unequal treatment. This is because the roots of injustice lie not inside the dark hearts of racist police officers or dishonest prosecutors, but within the minds of each and every one of us.   This is difficult to accept. Our nation is founded on the idea that the law is impartial, that legal cases are won or lost on the basis of evidence, careful reasoning and nuanced argument. But they may, in fact, turn on the camera angle of a defendant’s taped confession, the number of photos in a mug shot book, or a simple word choice during a cross-examination. In Unfair, Benforado shines a light on this troubling new field of research, showing, for example, that people with certain facial features receive longer sentences and that judges are far more likely to grant parole first thing in the morning.   Over the last two decades, psychologists and neuroscientists have uncovered many cognitive forces that operate beyond our conscious awareness. Until we address these hidden biases head-on, Benforado argues, the social inequality we see now will only widen, as powerful players and institutions find ways to exploit the weaknesses of our legal system.    Weaving together historical examples, scientific studies, and compelling court cases—from the border collie put on trial in Kentucky to the five teenagers who falsely confessed in the Central Park Jogger case—Benforado shows how our judicial processes fail to uphold our values and protect society’s weakest members. With clarity and passion, he lays out the scope of the legal system’s dysfunction and proposes a wealth of practical reforms that could prevent injustice and help us achieve true fairness and equality before the law.

    Cooper details many of these meta functions to explain his central thesis: programmers need to seriously re-evaluate the many user-hostile concepts deeply embedded within the software development process. Rather than provide users with a straightforward set of options, programmers often pile on the bells and whistles and ignore or de-prioritise lingering bugs. For the average user, increased functionality is a great burden, adding to the recurrent chorus that plays: "computers are hard, mysterious, unwieldy things." (An average user, Cooper asserts, who doesn't think that way or who has memorised all the esoteric commands and now lords it over others, has simply been desensitised by too many years of badly designed software.) Cooper's writing style is often overblown, with a pantheon of cutesy terminology (i.e. "dancing bearware") and insider back-patting. (When presenting software to Bill Gates, he reports that Gates replied: "How did you do that?" to which he writes: "I love stumping Bill!") More seriously, he is also unable to see beyond software development's importance--a sin he accuses programmers of throughout the book. Even with that in mind, the central questions Cooper asks are too important to ignore: Are we making users happier? Are we improving the process by which they get work done? Are we making their work hours more effective? Cooper looks to programmers, business managers and what he calls "interaction designers" to question current assumptions and mindsets. Plainly, he asserts that the goal of computer usage should be "not to make anyone feel stupid." Our distance from that goal reinforces the need to rethink entrenched priorities in software planning. -- Jennifer Buckendorff, Amazon.com

    Joining the professional web designers and programmers are new audiences who need to know a little bit of code at work (update a content management system or e-commerce store) and those who want to make their personal blogs more attractive. Many books teaching HTML and CSS are dry and only written for those who want to become programmers, which is why this book takes an entirely new approach. • Introduces HTML and CSS in a way that makes them accessible to everyone—hobbyists, students, and professionals—and it’s full-color throughout • Utilizes information graphics and lifestyle photography to explain the topics in a simple way that is engaging • Boasts a unique structure that allows you to progress through the chapters from beginning to end or just dip into topics of particular interest at your leisureThis educational book is one that you will enjoy picking up, reading, then referring back to. It will make you wish other technical topics were presented in such a simple, attractive and engaging way!

    Polya, How to Solve It will show anyone in any field how to think straight. In lucid and appealing prose, Polya reveals how the mathematical method of demonstrating a proof or finding an unknown can be of help in attacking any problem that can be reasoned out--from building a bridge to winning a game of anagrams. Generations of readers have relished Polya's deft--indeed, brilliant--instructions on stripping away irrelevancies and going straight to the heart of the problem.

    Nor is it always easy to raise, care for, guide and teach a highly sensitive child. Because the highly sensitive child experiences the world a little differently, and that can be difficult to understand. This book aims to help you experience the world from the child’s perspective, so that you can better understand them and help them to grow and thrive. In this simple, concise guide I distil the reams of information available on the highly sensitive child so that you can get the knowledge you need quickly and easily. Philosopher Friedrich Nietzsche wrote: ‘And those who were seen dancing were thought to be crazy by those who could not hear the music.’ The highly sensitive child isn’t crazy. Nor are they slow, or weak, or just ‘not tough enough’. They simply dance to a tune that not everyone can hear. This book helps you hear the music to which the highly sensitive child dances. Once you know the tune exists, and you listen for it carefully, you’ll find it’s beautiful, moving, powerful music.This is what Elaine N. Aron, Ph.D. thought of the book. Elaine is the author of the worldwide bestsellers The Highly Sensitive Person and The Highly Sensitive Child she has pioneered the research into Highly Sensitive People.“As the author of this truly brilliant little book, Jamie Williamson explains that he is not an academic or a psychologist. I am simply a man who feels very passionately about the subject. He is highly sensitive and so is one of his daughters, and he writes about sensitivity with both simplicity and depth. His sensitivity also shows in his book’s briefness. Caregivers of children need an author to get to the point so they can go get groceries, pick up the kids etc. Jamie’s book can be read in an hour, yet it has charming examples as well as great suggestions and a full, scientifically accurate description of the trait. Jamie is reaching out to all parents, carers and teachers of sensitive children and whether through this book or on his website, he is a wonderful resource.” – Elaine N. Aron.

    The book is fantastically illuminating, well written, works as a kind of autobiography, and Al's input is effective as commentary." You will probably feel the same way by seeing how creatively combining math, logic, psychology, and probability theory can solve problems you might have previously regarded as unsolvable. Your ability to identify and even manipulate other people's thoughts and desires should improve, as well as your ability to understand and resist other experts who attempt to do the same thing. And this book will almost certainly put money in your pocket.The title, DUCY?, was taken from our forums at www.twoplustwo.com's. To encourage people to think better, David would often ask, "Do you see why?" before fully explaining his conclusions or advice. Forum participants c

    Ever the teacher, in his last year, as his battle with the fatal illness amyotrophic lateral sclerosis (ALS), or Lou Gehrig's Disease, gradually weakened him, he appeared on three memorable "Nightline" programs with Ted Koppel, simply titled "Morrie," and captivated millions of viewers across the country with his spirit and compassion.Before he died, Morrie finished the manuscript for this book, which was originally titled Letting Go. He saw it as his greatest teaching opportunity. Whether you or a loved one is healthy or ill, young or old, there is invaluable wisdom here that can enrich your life. From "handling frustration" and "reaching acceptance" to "relating to others" and "being kind to yourself," Morrie's life-affirming insights help you take stock of where you are now and where you may want to be. Morrie: In His Own Words will have a lasting impact on whoever reads it. It is Morrie's invaluable legacy to us all.