Introduction: Proteomics and Protein-Protein Interactions: Biology, Chemistry, Bioinformatics, and Drug Design -- Yeast Two-Hybrid Protein-Protein Interaction Networks -- The Use of Mass Spectrometry in Studying Protein-Protein Interaction -- Molecular Recognition in the Immune System -- Computational Methods for Predicting Protein-Protein Interactions -- Protein-Protein Docking Methods -- Ther…