You know all of those sea monsters and mermaids that appear on old maps? The ones that terrorized mariners of old? Well there are a lot of stories and history behind them. And author Chet Van Duzer wrote a book that delves into a lot of them. Taking cues from cartographers who believed they were important enough to include on their maps, Chet focuses on European maps in his book Sea Monsters on Medieval and Renaissance Maps. The illustrations are a visual treat, and the stories bring them to life.