Published by the American Society of Addiction Medicine, the ASAM Essentials of Addiction Medicine, 4th Edition, serves as a comprehensive yet streamlined reference for healthcare professionals treating patients with substance use disorders. Derived from the 7th Edition of ASAM's Principles of Addiction Medicine, this vital resource, edited by physicians Abigail J. Herron, Tim K. Brennan, and Annie Lévesque, presents the collective expertise of hundreds of leading authorities in addiction medicine in a concise, accessible format.