Completely revised and expanded, this second edition of The Cytokine FactsBook is the most up-to-date reference manual available for all current well-characterized interleukins, cytokines, and their receptors. An additional 52 cytokines are included, doubling the number of entries from the previous edition. The key properties of each cytokine are described and presented in a very accessible format with diagrams for each of the receptors. The Cytokine FactsBook includes free online access to the regularly updated Cytokine Webfacts. Cytokine Webfacts is a web-based comprehensive compendium of facts about cytokines and their receptors that includes a variety of data representations, such as text, signal pathway diagrams and 3D images. This exciting resource is integrated into other databases via hypertext links to provide a unique network, and contains a web-enabled version of RasMol for viewing structures.