The author is trained in biology, microbiology, medicine and epidemiology in the US. His book is predicated on two main points: the Aids pandemic is so pervasive in Africa that drastic measures are needed; and that those measures must primarily depend on prevention. He discusses such a comprehensive approach and treatment, and stresses that the primary need is political will. The first four chapters deal with the general principles of history and epidemiology; and then focus on the effect of the epidemic in Africa and how to deal with it. Whilst a wealth of technical information is given, the language is accessible for the lay reader.