Written by two experienced toxicology lecturers, Principles of Toxicology is an easy-to-read, comprehensive textbook for a first course in toxicology at the undergraduate or graduate level. The book covers this broad and interdisciplinary field from the viewpoint of three different functional levels: molecular and cellular; physiological; and environmental and ecological. This revised Second Edition expands the diversity of the book by adding chapters on the role of toxicology in genomics, mechanisms of cell death, pharmacology and drug development, and forensics. The book also includes a series of brief case studies illustrating application of principles to current issues of interest.