This is not a book to be kept on a shelf for occasional, casual reading, nor can it be used effectively as a textbook on which to base an undergraduate or graduate course. Ecology and Management of Black‐Tailed and Mule Deer of North America is a comprehensive compilation of everything currently known about black‐tailed and mule deer. As such, it will be an invaluable resource for anyone with an interest in this iconic species. Graduate studentsneeding to brush up on basic life‐history traits of mule or black‐tailed deer will find everything they need to know in these pages. Biologists and managers wanting to implement new strategies for monitoring deer populations or for modifying deer habitat will find clear, accessible guidance. Even non‐professionals will find this a useful reference. This is the bible for anyone interested in mule or black‐tailed deer, and I know my copy won't just sit on my shelf.Ryan A. Long, Department of Fish and Wildlife Sciences, University of Idaho, Moscow, Idaho, USARepresenting three subspecies of Odocoileus hemionus, black-tailed and mule deer are the iconic deer of western North America. Significant culturally, historically, economically, and spiritually, these deer have drawn a significant amount of attention in both technical and popular outlets. Until now, the most comprehensive volume on these deer was Mule and Black-Tailed Deer of North America, compiled and ed. by Olof Wallmo (1981), comprising 15 essays by 12 contributors. In the 40-years since 1981 much has changed and much has been learned. Wildlife scientists and managers have long been concerned over the steady decline in mule deer populations. Heffelfinger and Krausman, both respected experts, brought together 15 essays by a total of 82 authors. Readers at all levels, whether scientists, wildlife managers, students, or wildlife enthusiasts, will find this book readable yet packed with the most current science and technical information. Examples of topics represented in the present volume but not in the earlier book include chronic wasting disease, migration ecology, integrated population modeling, genetics, and finer treatments of ecoregional differences. The editors' care with this volume is evident throughout. It will be the definitive reference for this species.-J. Organ, Emeritus, University of Massachusetts Amherst