This volume highlights the socioeconomic concerns related to medical care for homeless patients and places them at the interface of common psychiatric and medical problems clinicians encounter. Written by experts in psychiatry and other medical specialties, this volume is a concise, yet comprehensive overview of the homeless crisis, its costs, and ultimately, best practices for improved outcomes. The text begins by examining the scope and epidemiology of the problem and discusses its costs. It then examines the best practices for both physical and psychiatric care before concluding with a section on working with special populations that have unique concerns across the country including LGBTQ, women, children, veterans, and aging adults. As the first medical book on homelessness, it is designed to cover a broad range of concerns in a concise, practical fashion for all clinicians working with homeless patients. This book is written by and for psychiatrists, general internists, geriatricians, pediatricians, addiction medicine physicians, VA physicians, and all others who may encounter this crisis in their work.