First published in 1974 as a guide to diving medicine for recreational divers, professional divers, and doctors, "the Ehm" has become a standard reference work. The continuous revision of new editions ensures an up-to-date representation of the subject area. Diving is 80% diving medicine, and as with most natural sciences, the amount of information doubles in just five years. With this now eleventh revised edition, the authors present the most current and comprehensive standard work on the subject of diving medicine and its related fields.