The Cyclopedia
If you're one of those people who need constant internet access to answer any question at any time, perhaps you should consider picking up Running Press Cyclopedia: The Ultimate Visual Reference Tool ($14). A pocket-sized wonder, the Cyclopedia features over 1,000 illustrations and more than 200,000 facts covering topics such as world history, science, arts, and the environment — it's like having a blazing-fast Treo in your pocket, but without the email, phone, or internet connection. Okay, maybe it's not like a Treo at all, but it's still damn cool.