The goal of this book is to provide a comprehensive summary of dermatological conditions, established diagnostic techniques, surgical, laser, and other procedures. Experts from around the globe contributed so that readers can benefit from their knowledge and experience. This textbook is an excellent resource for practicing dermatologists, resident physicians, and students. While keeping it up-to-date and easy-to-read, the authors were conscientious of not making it too digital. This text carries the traditional book format and contents. Beyond covering routine skin conditions, the book contains a special focus on dermatologic surgery and cosmetic procedures. It also includes a summary of noninvasive diagnostic tools in dermatology, discusses simple and practical approaches to clinical pattern analysis, and is the first text to include a discussion on the role of a dermatologist in biological, chemical, and nuclear disasters. In addition, this book may be the first dermatology textbook to have a chapter focusing on care for the lesbian, gay, bisexual, transgender (LGBT) community.