Book excerpt: While considerable advances have been made in management of psoriasis in the last ten years, there is still no absolute cure, and no simple, safe, and invariably effective treatment. Therefore, the need for an up-to-date, authoritative, visually stunning, practical aid to diagnosis continues to be paramount for effective treatment of this disease. Written by Lionel Fry, one of the world's most distinguished dermatologists, this completely revised second edition is a full update of the internationally acclaimed first edition of An Atlas of Psoriasis. Copiously illustrated in color, including new high quality visual imagery only recently available, the atlas highlights new treatment options such as light therapy and topical, systemic, and immunomodulatory drugs. Providing an authoritative review of psoriasis, the book is an essential reference for dermatologists, dermatopathologists, internists, and family physicians.