The purpose of this booklet, published by the National Institute of Mental Health, is to provide the general public with an understanding of what is know about the causes of depression & the various treatments available. The introduction provides an overview of clinical depression. 5 major areas are covered: ch.1 “What is Depression?”; ch.2 “The Origins of Depression?”; ch.3 “Special Age Groups & Depression”; ch.4 “Suicide”; & ch.5 “Treatment Alternatives”.