On Privacy: Twenty Lessons to Protect Your Mind, Body, and Self in the Twenty-First Century

A small book with a big message: privacy matters.

In an age of constant connectivity, privacy can feel like a relic of the past. ＂On Privacy＂ challenges that notion with twenty sharp, practical lessons that show why privacy matters, why it’s vital for free societies, and why it’s essential for a fulfilling life. Written for those who care about their privacy but aren’t about to ditch their devices, this guide cuts through the noise with realistic, actionable steps to safeguard your personal space in the digital age. Short, sensible, and to the point, this book is your roadmap to navigating the complexities of modern privacy in a straightforward, no-nonsense way.

Lawrence Cappello is the author of None of Your Damn Business: Privacy in the United States from the Gilded Age to the Digital Age (University of Chicago Press). He is an award-winning professor of U.S. legal & constitutional history and a certified information privacy professional (CIPP/US & CIPM). His talks and consultations include the US State Department, the US Senate, the NFL, and leading tech and cryptocurrency companies. His work on the right to privacy has appeared in The Wall Street Journal, The Atlantic, The Economist, The Nation, The Hill, Motherboard, and The Washington Times.