Welsh photographer Philip Jones Griffiths studied pharmacy and worked as a chemist before he became a full-time freelance photographer in 1961. In 1962 Griffiths covered the war in Algeria, and from 1966 to 1971 he photographed the effects of war on the Vietnamese people. The resulting publication 'Vietnam Inc.' become a classic of photojournalism. He also photographed the Yom Kippur War and worked in Cambodia and Thailand. He became president of Magnum Photos in 1980.