At a world level addiction and the fall-out from substance use is affecting more and more lives. Professionals are increasingly being confronted with puzzling, multifaceted aspects of substance use, whether they work in a clinic, the laboratory or the community. If you are a member of any caring profession, sooner or later you will encounter problems caused by drugs, alcohol and tobacco. In order to understand substance use and substance users, no single discipline can provide all the answers. In a novel way, this book integrates biological science, social science and clinical experience. It draws together contributions from experts in these diverse and rapidly growing fields, providing the reader with a deeper capacity to engage with problems effectively. Drink, Drugs and Dependence includes thought-provoking examples, illustrations and test questions to support problem-based learning. Designed to be read consecutively or as a reference text, it will be a welcome resource for all those working in the field of addiction.