Skulls
See underneath the face of more than 300 animals with Skulls: An Exploration of Alan Dudley's Curious Collection ($18). Weighing in at 240 pages, this hardcover tome is filled with fantastic full-color photography of many specimens from Dudley's private collection, which is believed to be the largest and most complete in the world. The visuals are accompanied by writing from Simon Winchester, explaining more about the skull and listing the more information about the animal. Oh, and if dead trees aren't your thing, it's also available as an interactive iPad app.