Book excerpt: The fourth edition of this textbook has been thoroughly revised to bring trainees fully up to date with the latest developments in dermatology. Beginning with an introduction to the structure and function of skin, the following chapters discuss numerous common dermatological disorders. Each condition is described with a brief overview and treatment options. More than 460 full colour photographs and illustrations help trainees recognise and understand common skin diseases and their treatment. This new edition includes many more ailments including disorders of the sebaceous and sweat glands, and autoimmune and pigmentary conditions. New photographs have been added and a section dedicated to dermatological terminology has been included. Key points Fully revised new edition bringing trainees up to date with latest developments in dermatology Features many new disorders with more than 460 illustrative photographs Includes terminology section Previous edition published in 2008