The Web is awash in Ruby code that is now virtually impossible to change or extend. This text helps you solve that problem by using powerful real-world object-oriented design techniques, which it thoroughly explains using simple and practical Ruby examples. Sandi Metz has distilled a lifetime of conversations and presentations about object-oriented design into a set of Ruby-focused practices for crafting manageable, extensible, and pleasing code. She shows you how to build new applications that can survive success and repair existing applications that have become impossible to change. Each technique is illustrated with extended examples, all downloadable from the companion Web site, poodr.info. The first title to focus squarely on object-oriented Ruby application design, Practical Object-Oriented Design in Ruby will guide you to superior outcomes, whatever your previous Ruby experience. Novice Ruby programmers will find specific rules to live by; intermediate Ruby programmers will find valuable principles they can flexibly interpret and apply; and advanced Ruby programmers will find a common language they can use to lead development and guide their colleagues. This guide will help you Understand how object-oriented programming can help you craft Ruby code that is easier to maintain and upgrade Decide what belongs in a single Ruby class Avoid entangling objects that should be kept separate Define flexible interfaces among objects Reduce programming overhead costs with duck typing Successfully apply inheritance Build objects via composition Design cost-effective tests Solve common problems associated with poorly designed Ruby code

    As technology companies succeed and grow, so do their engineering departments. In your career, you’ll may suddenly get the opportunity to lead teams: to become a manager. But this is often uncharted territory. How can you decide whether this career move is right for you? And if you do, what do you need to learn to succeed? Where do you start? How do you know that you’re doing it right? What does “it” even mean? And isn’t management a dirty word? This book will share the secrets you need to know to manage engineers successfully.

    It then identifies and describes the advantages of this system, which needs less of everything including time, human effort, inventories, and investment to produce products with fewer defects in smaller volumes at lower costs for fragmenting markets. The Machine That Changed the World even gave the system its name: lean.In the decade since its launch in the fall of 1990, The Machine That Changed the World has sold more than 600,000 copies in 11 languages and has introduced a whole generation of managers and engineers to lean thinking. No lean library is complete without this groundbreaking book."The fundamentals of this system are applicable to every industry across the globea[and] will have a profound effect on human society. It will truly change the world." - New York TimesPaperback / 1990 / 323 pages

    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"

    I wrote it because I believe we can do better than the accepted "status quo" in the software industry. It took me years to learn what I needed to learn to come up with my version of the #NoEstimates approach. You can do it in weeks! The techniques and ideas described here will help you explore the #NoEstimates universe in a very practical and hands-on manner. You will walk through Carmen's story. Carmen is a senior, very experienced project manager who is now confronted with a very difficult project. One would say, an impossible project. Through the book, and with the help of Herman, Carmen discovers and slowly adopts #NoEstimates which helps her turn that project around. Just like I expect it will help with the project you are in right now. The book also includes many concrete approaches you can use to adopt #NoEstimates, or just adopt those practices on their own.

     The more tools you have at your disposal, the more likely you'll use the right tool for the job — and get it done right. The same is true when it comes to your thinking. The quality of your outcomes depends on the mental models in your head. And most people are going through life with little more than a hammer. Until now. The Great Mental Models: General Thinking Concepts is the first book in The Great Mental Models series designed to upgrade your thinking with the best, most useful and powerful tools so you always have the right one on hand. This volume details nine of the most versatile, all-purpose mental models you can use right away to improve your decision making, productivity, and how clearly you see the world. You will discover what forces govern the universe and how to focus your efforts so you can harness them to your advantage, rather than fight with them or worse yet— ignore them. Upgrade your mental toolbox and get the first volume today!

    You open the box and right on top is a quick-start guide. Being a novice, you follow the guide, and quickly get up and running. As you become more experienced, the other box contents address common advanced issues you'd face, like right-sizing teams, estimation, hitting deadlines, transitioning from Scrum or Waterfall, deploying components and services, and using Kanban within larger organizations.Real-world experience from a direct practitioner working on Xbox and Xbox.comA concise, pragmatic, and easy-to-read guide with clear, fresh, and hard-won guidanceUsing Kanban within larger organizations - how to deal with upper management, planning, and dependencies

    Each chapter is relatively self-contained and can be used as a unit of study. The algorithms are described in English and in a pseudocode designed to be readable by anyone who has done a little programming. The explanations have been kept elementary without sacrificing depth of coverage or mathematical rigor.

    These people are celebrities now. What was it like when they were just a couple friends with an idea? Founders like Steve Wozniak (Apple), Caterina Fake (Flickr), Mitch Kapor (Lotus), Max Levchin (PayPal), and Sabeer Bhatia (Hotmail) tell you in their own words about their surprising and often very funny discoveries as they learned how to build a company.Where did they get the ideas that made them rich? How did they convince investors to back them? What went wrong, and how did they recover?Nearly all technical people have thought of one day starting or working for a startup. For them, this book is the closest you can come to being a fly on the wall at a successful startup, to learn how it's done.But ultimately these interviews are required reading for anyone who wants to understand business, because startups are business reduced to its essence. The reason their founders become rich is that startups do what businesses do--create value--more intensively than almost any other part of the economy. How? What are the secrets that make successful startups so insanely productive? Read this book, and let the founders themselves tell you.

    Until now. This practical guide provides the first comprehensive overview of software architecture's many aspects. You'll examine architectural characteristics, architectural patterns, component determination, diagramming and presenting architecture, evolutionary architecture, and many other topics.Authors Neal Ford and Mark Richards help you learn through examples in a variety of popular programming languages, such as Java, C#, JavaScript, and others. You'll focus on architecture principles with examples that apply across all technology stacks.

    Without it, we forget what's important to us and lose sight of the steps we might take to reach those goals. Conscious business, explains Fred Kofman, means shining this awareness on every area of your work: in recognizing the needs of others and expressing your own; in seeing the hidden emotional obstacles that may be holding your team back; in making good decisions under pressure; and even in delving into such spiritual questions as "Who am I?" and "What is my real purpose here?" In Conscious Business, this visionary teacher and consultant to Google, Microsoft, Yahoo! and other leading companies presents the complete training manual in the breakthrough techniques he has shared with over 20,000 executives on four continents.

    Consumer's identities are being stolen, and a person's every step is being tracked and stored. What once might have been dismissed as paranoia is now a hard truth, and privacy is a luxury few can afford or understand.In this explosive yet practical book, Kevin Mitnick illustrates what is happening without your knowledge--and he teaches you "the art of invisibility." Mitnick is the world's most famous--and formerly the Most Wanted--computer hacker. He has hacked into some of the country's most powerful and seemingly impenetrable agencies and companies, and at one point he was on a three-year run from the FBI. Now, though, Mitnick is reformed and is widely regarded as the expert on the subject of computer security. He knows exactly how vulnerabilities can be exploited and just what to do to prevent that from happening. In THE ART OF INVISIBILITY Mitnick provides both online and real life tactics and inexpensive methods to protect you and your family, in easy step-by-step instructions. He even talks about more advanced "elite" techniques, which, if used properly, can maximize your privacy. Invisibility isn't just for superheroes--privacy is a power you deserve and need in this modern age.

    Yet, managing human beings and navigating complex product roadmaps is no easy task, and it's rare to find a product leader who can steward a digital product from concept to launch without a couple of major hiccups. Why do some product leaders succeed while others don't?This insightful book presents interviews with nearly 100 leading product managers from all over the world. Authors Richard Banfield, Martin Eriksson, and Nate Walkingshaw draw on decades of experience in product design and development to capture the approaches, styles, insights, and techniques of successful product managers. If you want to understand what drives good product leaders, this book is an irreplaceable resource.In three parts, Product Leadership helps you explore:Themes and patterns of successful teams and their leaders, and ways to attain those characteristicsThe best approaches for guiding your product team through the startup, emerging, and enterprise stages of a company's evolutionStrategies and tactics for working with customers, agencies, partners, and external stakeholders

    Hardcover published by Quadragle/The New York Times Book Co., third printing, August 1977, copyright 1975.

    It’s not about to-do lists and accountability charts. It’s about creating a framework for regular check-ins, key results, and most of all, the beauty of a good fail – and how to take a temporary disaster and turn it into a future success. In this book, Wodtke takes you through the fictional case study of Hanna and Jack, who are struggling to survive in their own startup. They fight shiny object syndrome, losing focus, and dealing with communication issues. After hard lessons, they learn the practical steps they need to do what must be done. The second half of the book demonstrates how to use Objectives and Key Results (OKRs) to help teams realize big goals in a methodical way, leaving nothing to chance. Laid out in a practical but compelling way, she makes the lessons of Hanna and Jack’s story clear and actionable. Ready to move your team in the right direction? Read this, and learn the system of creating your focus – and finding success. "Busy grinding without purpose is the secret death of too many startups. In this memorable story, Christina gives us a glimpse of a more satisfying kind of startup--still hard and chaotic but full of purpose and the chance to build something great." James Cham, Founder, Bloomberg Beta "This book is useful, actionable, and actually fun to read! If you want to get your team aligned around real, measurable goals, Radical Focus will teach you how to do it quickly and clearly." -Laura Klein, Principal, Users Know "Someone once told me that 'problems are just opportunities that haven’t presented themselves'. Since I was introduced to OKRs, they've been an invaluable tool for me, and our company. Christina's ideas have been instrumental, allowing me to better navigate the often ambiguous approach to goal setting and along the way creating a more open and accountable team and a clearer path for myself professionally. I personally can't thank her enough for the guidance." Scott Baldwin, Director of Services, Yellow Pencil "Radical Focus illustrates how to implement OKRs in an engaging, compact, realistic story. Best of all, Wodtke proves OKRs can be fun!" Ben Lamorte, OKRs.com