On Tyranny: Twenty Lessons from the Twentieth Century by Timothy Snyder
My rating: 5 of 5 stars

On Tyranny is a very short, highly readable book showing how democracies were vulnerable to totalitarianism in the the twentieth century, and why we should be worried about our democracy today. The author is a professor of history at Yale, and he knows how communism, fascism and Nazism took down European democracies in he 1920s, 30s and 40s.

The twenty lessons run from very short to somewhat lengthy, but never a chore to read. The author writes very clearly and to the point. I also found the Epilogue to be well worth the time to read. I highly recommend this book.