Hot Issues series. An illuminating, if repetitive, look at the types, symptoms, and causes of depression, with emphasis on how adolescents are affected. Profiles of two teens personally familiar with depression balance the clinical information, as do color photos of celebrities who have been seriously depressed. Also discussed are myths about suicide, different kinds of therapy, and tips on how to help a depressed friend. Bib., glos., ind., The Horn Book Guide January-June 2000.