Popular blacklight poster originally published and reproduced in the book Ultraviolet: 69 Classic Blacklight Posters from the Aquarian Age 
Related:
Discover America
Captain America (1970)
Dream of Me
Eagles Don’t Flock
Dreamer, 1973
Curl Surfer
Gemini Rising
The Ark, 1967
Greg Irons, 1967
PiPaPop, 1969
Bill Ogden, London Britches
Jim FitzPatrick, 1972
Natural Act
National Library Week, 1969
Peter Max
KMPX
1975 Monster Corporation calendar
Captain Midnight (1966)
Classic 1967 poster by Connie Keelan
1968 Human Be-in in Central Park
Québécois Love
Peter Max for Apollo 11
Everybody is Good at Heart
Life Is So Beautiful
From Detroit With Love
Procol Harum, Detroit
More Gary Grimshaw
Rob ‘Kick Out the Jams’ Tyner
Portland Posters
Windsor Typeface Appreciation Day