The Electric Kool-Aid Acid Test (1967)

Tom Wolfe's much-discussed kaleidoscopic non-fiction novel chronicles the tale of novelist Ken Kesey and his band of Merry Pranksters. In the 1960s, Kesey led a group of psychedelic sympathizers around the country in a painted bus, presiding over LSD-induced "acid tests" all along the way. Long considered one of the greatest books about the history of the hippies, Wolfe's ability to research like a reporter and simultaneously evoke the hallucinogenic indulgence of the era ensures that this book, written in 1967, will live long in the counter-culture canon of American literature.