Wes Wilson (1937-2020) is generally acknowledged as the father of the ’60s rock concert poster. Born Robert Wesley Wilson on July 15, 1937 in Sacramento, California, he helped pioneer what is now known as the psychedelic poster. His style of filling all available space with lettering, of creating fluid forms made from letters, and using flowing letters to create shapes became the standard that most psychedelic artists followed. It helped put the “psychedelic” in the art.