Conjugation of Polyethylene Glycol (PEG) to drugs has emerged in the past few years as a powerful technique for improving the efficacy of protein therapeutics. Using case studies to illustrate PEG technology in drug design, The Pharmacology of PEGylation: Applications for Drug Discovery discusses the basics of PEG molecules and their effects on drug action to help drug discovery scientists and pharmacologists understand how to use this extremely important and powerful technique to create better drugs.