Book excerpt: Well illustrated with high-quality photographs, Botulinum Toxins in Clinical Aesthetic Practice has proven itself a premier guide to the clinical use of different types of botulinum toxins for both esthetic and medical purposes. This second edition retains all the features that made its predecessor so successful, including detailed anatomic drawings, a review of the different formulations available, and specimen forms. This edition has been revised and updated throughout and features additional new material on medico-legal considerations and psychological and cultural factors that may affect the intentions of patients and the results that can be achieved.