Award-winning author Bob Leonard has collected odd and curious money for more than 45 years. He has written 17 studies on specific unusual monies, earning literary awards from the ANA and the Numismatic Literary Guild. In Curious Currency, Leonard engagingly explores the lessons that elephant tails, woodpecker scalps, neck rings, Yap stones, cocoa beans, whale teeth, and other odd and curious monies have for our economy today.