Alfred Kinsey was this century's first scientifically reputable and most influential researcher into sex. His SEXUAL BEHAVIOUR IN THE HUMANE MALE (The Kinsey Report), published in 1948, was an explosive bestseller, followed in 1953 by his even more radical statistics on female sexuality - both based on over 18, 000 case histories. But Kinsey's exploration went much further than that. Bisexual, he experimented with many of the behaviours he was hearing about; and his wife and close colleagues experimented too. He pioneered observation and filming sexual activity, the findings anticipating, and being confirmed by, Masters and Johnson thirty years later. The revolutionary nature of his views on female sexuality could not become current until the feminism of the 1970s and 80s. Kinsey remains a controversial figure. Gathorne Hardy has interviewed in depth his remaining family, his close colleagues, friends, lovers. He reveals, in this subtle, often witty and penetrating study whole new aspects of this complex, heroic, obsessive and ultimately sympathetic man.