As the title suggests, this book is a witty exploration of one of the biggest decisions a working person makes: when and whether to retire. Four-time Pulitzer Prize finalist and longtime Los Angeles Times columnist Steve Lopez, grappling with the question himself, explores the meaning of work and how it defines us. He interviews people who simply don't retire, including 94-year-old Mel Brooks, as well as early retirees who have reinvented themselves. A wise, poignant, and funny book.