Volume II contains a huge amount of information. However, it represents only a tiny fraction of the biochemical knowledge presently available. The many references given may help the reader to get started in consulting this literature. However, the references provide neither a comprehensive review of literature nor an accurate historical record. I hope that my fellow biochemists will forgive me where I have failed to cite their favorite articles. The main purpose of the references is to document the material that I used in preparing the text. The coverage is limited. I used a selection of journals that I could scan quickly, hoping to provide a broad view. However, there are now hundreds of journals that contain biochemical information. An important entrance to this literature is via the World Wide Web, which by now may contain ~1011 pages of information. (See D. Butler, Nature, 405, 112-115, 2000). I especially recommend http://highwire.stanford.edu which provides free of charges both abstracts and full articles from many journals. I hope that you will read many original papers and not only reviews. Above all I hope that this book will help you to find excitement in the many scientific discoveries that are reported week after week. I am especially appreciative of the efforts made by our artist David J. Sauke, who died suddenly on November 6, 2002. He was designer, artist, compositor, and close friend. I am indebted to Robert R. Louden, Emily L. Osam, and Kim McDermott for taking over David’s responsibilities and allowing us to complete the volume in a timely fashion.