The Wall Street Waltz: 90 Visual Perspectives, Illustrated Lessons From Financial Cycles and Trends (Fisher Investments Press)

This book is a wonderful compilation of many obscure but fascinating economic charts from the last 2 centuries. They give a sense of what the truly long-view looks like. One criticism is that this is a minor update of the earlier edition and most of the charts only go up to the mid 1980s. Still, an essential book for every finance geek.