Hair Replacement Surgery: P Bouhanna&JC Dardour, Springer, Berlin, 1996, 236 pp, DM 248.00. ISBN 3–540–59030–7Dermatologic Surgery Textbook and Atlas: J Petres, R Rompel, P Robins. Springer, Berlin, 1996, 522 pp, DM 348.00. ISBN 3–540–59453–1Manual of Dermatologic Therapeutics, 5th edn: KA Arndt, Little, Brown&Co, Boston, 1995, 382 pp,£26.95 ISBN 0–316–0517