This new volume of Advances in Pharmacology explores the current concepts in drug metabolism and toxicology. Chapters cover the Keap1-Nrf2 cell defense pathway, animal models of drug-induced idiosyncratic toxicity and the use of human embryonic and induced pluripotent stem cells for modeling metabolism and toxicity. With a variety of chapters and the best authors in the field, the volume is an essential resource for pharmacologists, immunologists and biochemists alike.