From The International Herald Tribune story by William Grimes:
Alton Kelley, whose psychedelic concert posters for artists like the Grateful Dead, Jimi Hendrix, and Big Brother and the Holding Company helped define the visual style of the 1960s counterculture, died on Sunday at his home in Petaluma, California He was 67. Kelley and his longtime collaborator, Stanley Mouse, combined sinuous Art Nouveau lettering and outré images plucked from sources near and far to create the visual equivalent of an acid trip. A 19th-century engraving from "The Rubaiyat of Omar Khayyam" inspired a famous poster for a Grateful Dead concert at the Avalon Ballroom in 1966 that showed a skeleton wearing a garland of roses on its skull and holding a wreath of roses on its left arm. The Grateful Dead later adopted this image as its emblem. Kelley and Mouse also designed several of the group's album covers, including "American Beauty" and "Workingman's Dead."
