This long-awaited biography of Fritz Haber, now abridged by the author and translated into English, illuminates the life of one of the most gifted yet controversial figures of the 20th century. Haber was a pioneer in electrochemistry and thermodynamics and won the Nobel Prize for his synthesis of ammonia, a process essential for both fertilizer and explosives. His dedication to work spurred his efforts to increase support for scientific study in Germany; yet it also helped cause the breakdown of his two marriages. His ardent patriotism led him to develop chemical weapons for World War I and to try to extract gold from seawater, to help pay for Germany's huge war reparations. Yet Haber, a Jew by birth, was exiled from his homeland in 1933 by the Nazi party and died shortly after.