Donald McQuarrie's name is synonymous with excellence in chemical education. As the author of landmark chemistry books and textbooks, from his classic text on Statistical Mechanics to his quantum-first tour de force on Physical Chemistry, McQuarrie's best selling textbooks are highly acclaimed by the chemistry community. McQuarrie received his PhD from the University of Oregon, and was Professor Emeritus from the Department of Chemistry at the University of California, Davis. He died on July 6, 2009. Peter A Rock received his bachelor's degree in chemistry from Boston University in 1961. He then went on to UC Berkeley, where he was awarded a doctorate in physical chemistry and chemical thermodynamics in 1964. That same year, he joined the faculty at UC Davis as an assistant professor, where he remained for the rest of his career. Rock wrote textbooks for students at all levels of chemistry and geochemistry, averaging a book every five years. Peter A. Rock died June 14, 2006 after an extended illness. Ethan Gallogly, joined McQuarrie as co-author on this new edition. He earned his BS from the University of Connecticut and his PhD from the University of California, Davis. Following completion of his doctoral studies, Gallogly, who is bilingual, worked as a foreign expert in Mainland China. Afterward, he accepted a position at the University of California at Berkeley as a Chemistry Lecturer and Laboratory Coordinator for three years before joining the faculty of Santa Monica College in 1999. Most recently, Gallogly has been awarded a sabbatical to research fuel cell technology at Sichuan University.