One of the most essential works on the 1960s counterculture, Tom Wolfe's The Electric Kool-Aid Test is the seminal work on the hippie culture, a report on what it was like to follow along with Ken Kesey and the Merry Pranksters as they launched out on the "Transcontinental Bus Tour" from the West Coast to New York, all the while introducing acid (then legal) to hundreds of like-minded folks, staging impromptu jam sessions, dodging the Feds, and meeting some of the most revolutionary figures of the day. Source: OpenLibrary