Thomas E. Creighton is retired, after a career in research at Caltech, Stanford and Yale Universities, the MRC Laboratory of Molecular Biology at Cambridge, England, and the European Molecular Biology Laboratory at Heidelberg, Germany. He is the author of two editions of Proteins: Structures and Molecular Properties published by W.H. Freeman and has edited the four-volume Encyclopedia of Molecular Biology and the five-volume Encyclopedia of Molecular Medicine for Wiley-Interscience, two editions of Protein Structure: A Practical Approach and of Protein Function: A Practical Approach for IRL Press at Oxford University Press, and the volume Protein Folding for W.H. Freeman.