The classic guide to how computers work, updated with new chapters and interactive graphics "For me, Code was a revelation. It was the first book about programming that spoke to me. It started with a story, and it built up, layer by layer, analogy by analogy, until I understood not just the Code, but the System. Code is a book that is as much about Systems Thinking and abstractions as it is about code and programming. Code teaches us how many unseen layers there are between the computer systems that we as users look at every day and the magical silicon rocks that we infused with lightning and taught to think." - Scott Hanselman, Partner Program Director, Microsoft, and host of Hanselminutes Computers are everywhere, most obviously in our laptops and smartphones, but also our cars, televisions, microwave ovens, alarm clocks, robot vacuum cleaners, and other smart appliances. Have you ever wondered what goes on inside these devices to make our lives easier but occasionally more infuriating? For more than 20 years, readers have delighted in Charles Petzold's illuminating story of the secret inner life of computers, and now he has revised it for this new age of computing. Cleverly illustrated and easy to understand, this is the book that cracks the mystery. You'll discover what flashlights, black cats, seesaws, and the ride of Paul Revere can teach you about computing, and how human ingenuity and our compulsion to communicate have shaped every electronic device we use. This new expanded edition explores more deeply the bit-by-bit and gate-by-gate construction of the heart of every smart device, the central processing unit that combines the simplest of basic operations to perform the most complex of feats. Petzold's companion website, CodeHiddenLanguage.com, uses animated graphics of key circuits in the book to make computers even easier to comprehend. In addition to substantially revised and updated content, new chapters include: Chapter 18: Let's Build a Clock! Chapter 21: The Arithmetic Logic Unit Chapter 22: Registers and Busses Chapter 23: CPU Control Signals Chapter 24: Jumps, Loops, and Calls Chapter 28: The World Brain From the simple ticking of clocks to the worldwide hum of the internet, Code reveals the essence of the digital revolution.

By piecing together cryptic hints from the note and other clues left behind, Hannah Hawkins realizes her parents disappeared while trying to find the mysterious Code of Enoch.

This illustrated encyclopedia surveys the history and development of code-making and code-breaking in all areas of culture and society from hieroglyphs and runes to DNA, the Zodiac Killer, graffiti, and beyond.

Explains how different ciphers work, why they were invented, and how they were cracked, covering codes ranging from ancient Egyptian hieroglyphs and World War II's Enigma machines to the samurai code of honor.

A 2022 PROSE Award finalist in Legal Studies and Criminology A 2022 American Bar Association Silver Gavel Award Finalist A Behavioral Scientist’s Notable Book of 2021 Freakonomics for the law—how applying behavioral science to the law can fundamentally change and explain misbehavior Why do most Americans wear seatbelts but continue to speed even though speeding fines are higher? Why could park rangers reduce theft by removing “no stealing” signs? Why was a man who stole 3 golf clubs sentenced to 25 years in prison? Some laws radically change behavior whereas others are consistently ignored and routinely broken. And yet we keep relying on harsh punishment against crime despite its continued failure. Professors Benjamin van Rooij and Adam Fine draw on decades of research to uncover the behavioral code: the root causes and hidden forces that drive human behavior and our responses to society’s laws. In doing so, they present the first accessible analysis of behavioral jurisprudence, which will fundamentally alter how we understand the connection between law and human behavior. The Behavioral Code offers a necessary and different approach to battling crime and injustice that is based in understanding the science of human misconduct—rather than relying on our instinctual drive to punish as a way to shape behavior. The book reveals the behavioral code’s hidden role through illustrative examples like: • The illusion of the US’s beloved tax refund • German walls that “pee back” at public urinators • The $1,000 monthly “good behavior” reward that reduced gun violence • Uber’s backdoor “Greyball” app that helped the company evade Seattle’s taxi regulators • A $2.3 billion legal settlement against Pfizer that revealed how whistleblower protections fail to reduce corporate malfeasance • A toxic organizational culture playing a core role in Volkswagen’s emissions cheating scandal • How Peter Thiel helped Hulk Hogan sue Gawker into oblivion Revelatory and counterintuitive, The Behavioral Code catalyzes the conversation about how the law can effectively improve human conduct and respond to some of our most pressing issues today, from police misconduct to corporate malfeasance.

Dozens of codes and hidden messages are presented as riddles, poems and other fun-filled expressions.

Americans spend more than $11 billion a year on self-help products—everything from books to diet pills to career coaches to seminars. So why—with all this time, money, and energy being spent—are so few people living the life they really want? Why are millions of smart, talented, motivated people still going through life with one foot on the brake? Here's the real Secret: You don't need any more how-to-succeed information to reach your full potential. The problem isn't lack of motivation or lack of information. The real problem is that most people focus on the "how-to" aspects of success taught by traditional self-help programs, without coming to terms with what productivity expert Noah St. John calls your "head trash"—the subconscious, emotional roadblocks that prevent people from acting on their real hopes, dreams, and ambitions. In this groundbreaking book, based on work with thousands of clients around the world, Noah St. John has created a remarkable, step-by-step approach that helps you achieve long-term happiness, success, and wealth. In The Secret Code of Success, you will learn how to: Eliminate the causes of self-sabotage and fear of success Allow yourself to make more money Remove stress while dramatically increasing personal productivity Improve relationships with coworkers, family, and friends Experience enhanced feelings of happiness, connection, and love The Secret Code of Success shows that, when it comes to success, the conscious mind is exactly the wrong place to start. It's only when we first conquer the self-sabotage of our subconscious (which accounts for 90 percent of our behavior) that we can truly begin to enjoy a life filled with success. This insight is at the core of The Secret Code of Success and leads to Noah's revolutionary 7-step method for eliminating these psychological obstacles. True financial freedom and personal success is possible at last! The Secret Code of Success shows you how to get your foot off the brake and start living the life you deserve.