Book excerpt: Botulinum Toxin in Clinical Dermatology explores botulinum toxin, from its early recognition as a food borne toxin to its current form as a pharmaceutical injectible. This high quality, well-illustrated, practical manual presents the latest on the clinical use of the different types of botulinum toxins available and presents in a clear and concise way all the pertinent and up-to-date information on how to inject botulinum toxin and avoid complications. Packed with clinical photographs and scientific drawings, each chapter addresses a different aspect of the topic. This is the most comprehensive and authoritative reference for cosmetic injections of botulinum toxin for removal of facial and neck wrinkles.