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    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

    From iconic entrepreneurs to elite athletes, from artists to billionaire investors, their short profiles can help you answer life's most challenging questions, achieve extraordinary results, and transform your life.From the author: In 2017, several of my close friends died in rapid succession. It was a very hard year, as it was for many people. It was also a stark reminder that time is our scarcest, non-renewable resource. With a renewed sense of urgency, I began asking myself many questions: Were my goals my own, or simply what I thought I should want? How much of life had I missed from underplanning or overplanning? How could I be kinder to myself? How could I better say “no” to the trivial many to better say “yes” to the critical few? How could I best reassess my priorities and my purpose in this world? To find answers, I reached out to the most impressive world-class performers in the world, ranging from wunderkinds in their 20s to icons in their 70s and 80s. No stone was left unturned. This book contains their answers—practical and tactical advice from mentors who have found solutions. Whether you want to 10x your results, get unstuck, or reinvent yourself, someone else has traveled a similar path and taken notes. This book, Tribe of Mentors, includes many of the people I grew up viewing as idols or demi-gods. Less than 10% have been on my podcast (The Tim Ferriss Show, more than 200 million downloads), making this a brand-new playbook of playbooks. No matter your challenge or opportunity, something in these pages can help. Among other things, you will learn: • More than 50 morning routines—both for the early riser and those who struggle to get out of bed. • How TED curator Chris Anderson realized that the best way to get things done is to let go. • The best purchases of $100 or less (you'll never have to think about the right gift again). • How to overcome failure and bounce back towards success. • Why Humans of New York creator Brandon Stanton believes that the best art will always be the riskiest. • How to meditate and be more mindful (and not just for those that find it easy). • Why tennis champion Maria Sharapova believe that “losing makes you think in ways victories can’t.” • How to truly achieve work-life balance (and why most people tell you it isn’t realistic). • How billionaire Facebook co-founder Dustin Moskovitz transformed the way he engages with difficult situations to reduce suffering. • Ways to thrive (and survive) the overwhelming amount of information you process every day. • How to achieve clarity on your purpose and assess your priorities. • And much more. This reference book, which I wrote for myself, has already changed my life. I certainly hope the same for you. I wish you luck as you forge your own path. All the best, Tim Ferriss

    But the Agile literature has paid scant attention to what business value means—and how to know whether or not you are delivering it. This problem becomes ever more critical as you push value delivery toward autonomous teams and away from requirements “tossed over the wall” by business stakeholders. An empowered team needs to understand its goal! Playful and thought-provoking, The Art of Business Value explores what business value means, why it matters, and how it should affect your software development and delivery practices. More than any other IT delivery approach, DevOps (and Agile thinking in general) makes business value a central concern. This book examines the role of business value in software and makes a compelling case for why a clear understanding of business value will change the way you deliver software. This book will make you think deeply about not only what it means to deliver value but also the relationship of the IT organization to the rest of the enterprise. It will give you the language to discuss value with the business, methods to cut through bureaucracy, and strategies for incorporating Agile teams and culture into the enterprise. Most of all, this book will startle you into new ways of thinking about the cutting-edge of Agile practice and where it may lead.

    The Art of Possibility combines Benjamin Zander's experience as conductor of the Boston Philharmonic and his talent as a teacher and communicator with psychotherapist Rosamund Stone Zander's genius for designing innovative paradigms for personal and professional fulfillment. The authors' harmoniously interwoven perspectives provide a deep sense of the powerful role that the notion of possibility can play in every aspect of life. Through uplifting stories, parables, and personal anecdotes, the Zanders invite us to become passionate communicators, leaders, and performers whose lives radiate possibility into the world

    By pursuing success in isolation - pushing others away as we push ourselves too hard - we are not just limiting our potential, we are becoming more stressed and disconnected than ever.In his highly anticipated follow-up to The Happiness Advantage, Achor reveals a better approach. Drawing on his work in 50 countries, he shows that success and happiness are not competitive sports. Rather, they depend almost entirely on how well we connect with, relate to, and learn from each other.Just as happiness is contagious, every dimension of human potential - performance, intelligence, creativity, leadership ability and health - is influenced by those around us. So when we help others become better, we reach new levels of potential, as well. Rather than fighting over scraps of the pie, we can expand the pie instead.Small Potential is the limited success we can attain alone. BIG Potential is what we can achieve together. Here, Achor offers five strategies - the SEEDS of Big Potential--for lifting the ceiling on what we can achieve while returning happiness and meaning to our lives.The dramatic shifts in how we approach work today demand an equally dramatic shift in our approach to success. Big Potential offers a new path to thriving in the modern world.

    Edited by the Sustainability Institute’s Diana Wright, this essential primer brings systems thinking out of the realm of computers and equations and into the tangible world, showing readers how to develop the systems-thinking skills that thought leaders across the globe consider critical for 21st-century life.Some of the biggest problems facing the world—war, hunger, poverty, and environmental degradation—are essentially system failures. They cannot be solved by fixing one piece in isolation from the others, because even seemingly minor details have enormous power to undermine the best efforts of too-narrow thinking.While readers will learn the conceptual tools and methods of systems thinking, the heart of the book is grander than methodology. Donella Meadows was known as much for nurturing positive outcomes as she was for delving into the science behind global dilemmas. She reminds readers to pay attention to what is important, not just what is quantifiable, to stay humble, and to stay a learner.In a world growing ever more complicated, crowded, and interdependent, Thinking in Systems helps readers avoid confusion and helplessness, the first step toward finding proactive and effective solutions.

    "We spend more time working than doing anything else in life. It's not right that the experience of work should be so demotivating and dehumanizing." So says Laszlo Bock, head of People Operations at the company that transformed how the world interacts with knowledge. This insight is the heart of WORK RULES!, a compelling and surprisingly playful manifesto that offers lessons including:Take away managers' power over employeesLearn from your best employees-and your worstHire only people who are smarter than you are, no matter how long it takes to find themPay unfairly (it's more fair!)Don't trust your gut: Use data to predict and shape the futureDefault to open-be transparent and welcome feedbackIf you're comfortable with the amount of freedom you've given your employees, you haven't gone far enough. Drawing on the latest research in behavioral economics and a profound grasp of human psychology, WORK RULES! also provides teaching examples from a range of industries-including lauded companies that happen to be hideous places to work and little-known companies that achieve spectacular results by valuing and listening to their employees. Bock takes us inside one of history's most explosively successful businesses to reveal why Google is consistently rated one of the best places to work in the world, distilling 15 years of intensive worker R&D into principles that are easy to put into action, whether you're a team of one or a team of thousands. WORK RULES! shows how to strike a balance between creativity and structure, leading to success you can measure in quality of life as well as market share. Read it to build a better company from within rather than from above; read it to reawaken your joy in what you do.

    Employees who don't feel supported at work don't stay around for long - or if they do, they quickly become unmotivated and unhappy. At a time when organisational structures are flattening and workforces are increasingly fluid, supporting and connecting people is more important than ever. This is where organisational communities of practice come in. Communities of practice have many valuable benefits. They include accelerating professional development; breaking down organisational silos; enabling knowledge sharing and management; building better practice; helping to hire and retain staff; and making people happier. In this book, Emily Webber shares her learning from personal experiences of building successful communities of practice within organisations. And along the way, she gives practical guidance on creating your own.

    But in today’s service- and software-driven world, “done” is less obvious. When is Amazon done? When is Google done? Or Facebook? In reality, services powered by digital systems are never done. So then how do we give teams a goal that they can work on?Mostly, we simply ask teams to build features—but features are the wrong way to go. We often build features that create no value. Instead, we need to give teams an outcome to achieve. Using outcomes creates focus and alignment. It eliminates needless work. And it puts the customer at the center of everything you do.Setting goals as outcomes sounds simple, but it can be hard to do in practice. This book is a practical guide to using outcomes to guide the work of your team. "Josh’s crisp volume brims with insight about how to fly at just the right level - the level of outcomes. If you’ve ever wondered how M your MVP should be, or how to get more R in your OKRs, this book will help." --Nick Rockwell, CTO, NY Times

    "Looking to make a career change? Pivot is a book you will turn to again and again." —Daniel Pink, author of To Sell is Human and Drive Jenny Blake, author of Life After College and former career development program manager at Google, reveals how to methodically make your next career move by doubling down on what is already working.This book is for anyone searching for an answer to the question, "What's next?" Whether you have hit a plateau in your perfect-on-paper job, are considering taking on a new role in your current job, are thinking about starting your own business, or you want to move into a new industry altogether, one thing remains clear: your career success depends on your ability to determine your next best move.If change is the only constant, let’s get better at it.

    People need to be effective.Productivity books focus on doing more, Jim and Tonianne want you to focus on doing better. Personal Kanban is about choosing the right work at the right time. Recognizing why we do the things we do. Understanding the impact of our actions. Creating value - not just product. For ourselves, our families, our friends, our co-workers. For our legacy.Personal Kanban takes the same Lean principles from manufacturing that led the Japanese auto industry to become a global leader in quality, and applies them to individual and team work. Personal Kanban asks only that we visualize our work and limit our work-in-progress. Visualizing work allows us to transform our conceptual and threatening workload into an actionable, context-sensitive flow. Limiting our work-in-progress helps us complete what we start and understand the value of our choices. Combined, these two simple acts encourage us to improve the way we work and the way we make choices to balance our personal, professional, and social lives.Neither a prescription nor a plan, Personal Kanban provides a light, actionable, achievable framework for understanding our work and its context. This book describes why students, parents, business leaders, major corporations, and world governments all see immediate results with Personal Kanban.

    Based on experience, it is a guide for navigating the blockers, buzzwords and bloody-mindedness that doom any analogue organisation trapped into thinking that while the internet has changed the world, it won't change their world. Companies that grew up on the web have changed our expectations of the services we rely on. We demand simplicity, speed and low cost. Organizations founded before the Internet aren't keeping up - despite spending millions on IT, marketing and 'innovation'. This book is a guide to building a digital institution. It explains how a growing band of reformers in businesses and governments around the world have helped their organizations pivot to this new way of working, and what lessons others can learn from their experience. It is based on the authors' experience designing and helping to deliver the UK's Government Digital Service (GDS). The GDS was a new institution made responsible for the digital transformation of government, designing public services for the Internet era. It snipped �4 billion off the government's technology bill, opened up public sector contracts to thousands of new suppliers, and delivered online services so good that citizens chose to use them over the offline alternatives, without a big marketing campaign. Other countries and companies noticed, with the GDS model now being copied around the world.

    That's a mistake, says Daniel H. Pink (author of To Sell Is Human: The Surprising Truth About Motivating Others). In this provocative and persuasive new book, he asserts that the secret to high performance and satisfaction-at work, at school, and at home—is the deeply human need to direct our own lives, to learn and create new things, and to do better by ourselves and our world.Drawing on four decades of scientific research on human motivation, Pink exposes the mismatch between what science knows and what business does—and how that affects every aspect of life. He examines the three elements of true motivation—autonomy, mastery, and purpose-and offers smart and surprising techniques for putting these into action in a unique book that will change how we think and transform how we live.

    Two leaders in the requirements community have teamed up to deliver a contemporary set of practices covering the full range of requirements development and management activities on software projects. Describes practical, effective, field-tested techniques for managing the requirements engineering process from end to end. Provides examples demonstrating how requirements "good practices" can lead to fewer change requests, higher customer satisfaction, and lower development costs. Fully updated with contemporary examples and many new practices and techniques. Describes how to apply effective requirements practices to agile projects and numerous other special project situations. Targeted to business analysts, developers, project managers, and other software project stakeholders who have a general understanding of the software development process. Shares the insights gleaned from the authors' extensive experience delivering hundreds of software-requirements training courses, presentations, and webinars.New chapters are included on specifying data requirements, writing high-quality functional requirements, and requirements reuse. Considerable depth has been added on business requirements, elicitation techniques, and nonfunctional requirements. In addition, new chapters recommend effective requirements practices for various special project situations, including enhancement and replacement, packaged solutions, outsourced, business process automation, analytics and reporting, and embedded and other real-time systems projects.