Hypertensive disorders remain one the major causes of maternal and fetal morbidity and death. It is also a leading cause of preterm birth now known to be a risk factor in remote cardiovascular disease. Despite this the hypertensive disorders remain marginally studied and management is often controversial. Chesley's Hypertensive Disorders in Pregnancy, remains one of the beacons to guide this field, recognized for its uniqueness and utility. The Third Edition continues this tradition, focusing on prediction, prevention, and management for clinicians, and is an essential reference text for clinical and basic investigators alike. Differing from other texts devoted to preeclampsia, it covers the whole gamut of high blood pressure, and not just preeclampsia. New chapters focusing on recent discoveries in angiogenesis, auto-antibodies and other recent immunological findings, imaging in eclampsa, animal models - where considerable progress has emerged since the previous edition.