I read it years ago and, at the time, thought it was the best non-fiction book I've ever read. Grabber goes into the history of money, debt, war and slavery (all intrinsically linked).

Over the years, there are some parts of the book I really disagree with him on, especially when it comes to him whining about student loans. Still, there is a lot of really interesting stuff in there, and the book does a good job of explaining how we've been mislead on economics in school. We're taught barter came first and then credit, when in reality credit came first (even if it meant notches on a tree) and barter only came about when civilizations fell.