But if code isn't clean, it can bring a development organization to its knees. Every year, countless hours and significant resources are lost because of poorly written code. But it doesn't have to be that way. Noted software expert Robert C. Martin presents a revolutionary paradigm with Clean Code: A Handbook of Agile Software Craftsmanship . Martin has teamed up with his colleagues from Object Mentor to distill their best agile practice of cleaning code on the fly into a book that will instill within you the values of a software craftsman and make you a better programmer but only if you work at it. What kind of work will you be doing? You'll be reading code - lots of code. And you will be challenged to think about what's right about that code, and what's wrong with it. More importantly, you will be challenged to reassess your professional values and your commitment to your craft. Clean Code is divided into three parts. The first describes the principles, patterns, and practices of writing clean code. The second part consists of several case studies of increasing complexity. Each case study is an exercise in cleaning up code - of transforming a code base that has some problems into one that is sound and efficient. The third part is the payoff: a single chapter containing a list of heuristics and "smells" gathered while creating the case studies. The result is a knowledge base that describes the way we think when we write, read, and clean code. Readers will come away from this book understanding ‣ How to tell the difference between good and bad code‣ How to write good code and how to transform bad code into good code‣ How to create good names, good functions, good objects, and good classes‣ How to format code for maximum readability ‣ How to implement complete error handling without obscuring code logic ‣ How to unit test and practice test-driven development This book is a must for any developer, software engineer, project manager, team lead, or systems analyst with an interest in producing better code.

    From the assembly lines of Henry Ford to the open roads of Route 66, from the lore of Jack Kerouac to the sex appeal of the Hot Rod, America’s history is a vehicular history—an idea brought brilliantly to life in this major work by Pulitzer Prize–winning journalist Paul Ingrassia. Ingrassia offers a wondrous epic in fifteen automobiles, including the Corvette, the Beetle, and the Chevy Corvair, as well as the personalities and tales behind them: Robert McNamara’s unlikely role in Lee Iacocca’s Mustang, John Z. DeLorean’s Pontiac GTO , Henry Ford’s Model T, as well as Honda’s Accord, the BMW 3 Series, and the Jeep, among others. Through these cars and these characters, Ingrassia shows how the car has expressed the particularly American tension between the lure of freedom and the obligations of utility. He also takes us through the rise of American manufacturing, the suburbanization of the country, the birth of the hippie and the yuppie, the emancipation of women, and many more fateful episodes and eras, including the car’s unintended consequences: trial lawyers, energy crises, and urban sprawl. Narrative history of the highest caliber, Engines of Change is an entirely edifying new way to look at the American story.

    Backed by investors such as Larry Ellison and Tim Draper, Theranos sold shares in a fundraising round that valued the company at $9 billion, putting Holmes's worth at an estimated $4.7 billion. There was just one problem: The technology didn't work.For years, Holmes had been misleading investors, FDA officials, and her own employees. When Carreyrou, working at The Wall Street Journal, got a tip from a former Theranos employee and started asking questions, both Carreyrou and the Journal were threatened with lawsuits. Undaunted, the newspaper ran the first of dozens of Theranos articles in late 2015. By early 2017, the company's value was zero and Holmes faced potential legal action from the government and her investors. Here is the riveting story of the biggest corporate fraud since Enron, a disturbing cautionary tale set amid the bold promises and gold-rush frenzy of Silicon Valley.