The art book "Art and Arcana" for Dungeons and Dragons is now on a huge sale. Only 9 bucks (despite what the picture link says) for what was once a 50 dollar book. It's hefty tome that looks at the artwork, products and designs for Dungeons and Dragons over it's lifetime. Well worth it for any fantasy gaming fan.
EDIT: Well the big sale is done but the book is still up at like 50 percent off.