Book excerpt: Molecular Nature is a richly illustrated guide to the extraordinary diversity of molecules that are responsible for life. David Goodsell, author of the highly-praised book, The Machinery of Life, has synthesized a vast amount of data in a manner that is accessible to the general reader. Molecular Nature examines topics ranging from the shape of cells to the molecules responsible for digestion, immunity, and thought. The author's unique combination of scientific and artistic talents make this a readable, stimulating and highly evocative book. About the Author: David Goodsell is in the Department of Molecular Biology at the Research Institute of Scripps Clinic in La Jolla, California. His research involves computer graphics and X-ray crystallography. He is the author of The Machinery of Life (Springer-Verlag, 1992), and his artwork has been shown at exhibitions on science and art.