RT Journal A1 Lazar AP T1 Photosensitivity disease: Principles of diagnosis and treatment JF JAMA JO JAMA YR 1989 FD October 13 VO 262 IS 14 SP 2021 OP 2021 DO 10.1001/jama.1989.03430140139043 UL http://dx.doi.org/10.1001/jama.1989.03430140139043 AB When two leaders in the field of photobiology collaborate, one would expect an outstanding textbook, and, fortunately, Drs Bicker and Harber don't disappoint. From the preface in which they target their audience—dermatologists, pediatricians, internists, and family practitioners—to their large color atlas of common and not-so-common clinical diseases, this text offers important detailed information to the clinician and investigator.The book is divided into five sections. A brief introduction on the sun's role in history and mythology acts as a gentle bridge into the second section on the physics of radiant energy. Third is a section dealing with the therapeutic effects of radiation ranging from psoralen—ultraviolet-A range (PUVA) light (for psoriasis and cutaneous T-cell lymphoma) to phototherapy (for neonatal jaundice). This part is very up to date as it includes information such as the new liquid formulation of psoralen.The fourth and largest part of the book covers the diagnosis and