On Tyranny is a bare-bones lesson in modern examples of Fascism and Totalitarianism. Snyder presents his information in an easy to absorb list format, each item giving you historical context, warning signs, and ways to defend against common pitfalls and traps. My first inclination was to say I wish this slender volume was longer, but after reflection I think the concise chapters and shortened length were a boon – having this information presented in bite sized chunks made it easier to fully absorb and digest. This book was equal parts informative, alarming, and useful. I finished this book with renewed resolve and sharpened perspective. A vital and eye-opening reading for engaged citizens of the world.