Beginning in the late 1940's, American literature discovered a four-letter word, and the word was "beat." Beat as in poverty and beatitude, ecstasy and exile. Beat was Jack Kerouac touring the American road in prose as fast and reckless as a V-8 Chevy. It was the junk-sick surrealism of William Burroughs; the wild, Whitmanesque poetry of Allen Ginsberg; and the lumberjack Zen of Gary Snyder. The Portable Beat Reader collects the most...