The first major biography of one of the most controversial figures in postwar America. To a generation in full revolt against any form of authority, "Tune in, turn on, drop out" became a mantra, and its popularizer, Dr. Timothy Leary, a guru. A charismatic and brilliant psychologist, Leary became first intrigued and then obsessed by the effects of psychedelic drugs in the 1960s while teaching at Harvard, where he not only encouraged but instituted...