NORM BARKER is a Professor Emeritus of Pathology and Art as Applied to Medicine at the Johns Hopkins University School of Medicine. Norm is an award-winning science photographer, writer, and designer. His work appears in textbooks, journals, and museums worldwide. His photographs are in the permanent collections of more than forty museums, including the Smithsonian Museum of Natural History, the George Eastman Museum, the American Museum of Natural History, and the Science Museum in London. He is an Accredited Senior Imaging Scientist and a Fellow of the Royal Photographic Society in Great Britain and the Biocommunications Association.