Brand new text book: "Tumor Immunology and Immunotherapy," edited by Robert C. Rees.

Great book that spans introductory subjects all the way to in depth aspects of the growing field of cancer immunotherapy. Retails for over $200 new and $135 used:

http://www.amazon.com/Tumor-Immunology-Immunotherapy-Robert-Rees/dp/0199676860

$100 OBO