"The Art of Invisibility: The World's Most Famous Hacker Teaches You How to Be Safe in the Age of Big Brother and Big Data" by Kevin Mitnick is a guide to staying safe and secure in the digital age. Mitnick is a former hacker who spent five years in prison for computer crimes, and has since become a respected security consultant. In this book, he shares his insights into how hackers think and work, and provides practical advice on how to protect yourself online.