Psychedelic artist who became known for his 1960s rock band posters and album covers for bands like the Grateful Dead.
He was born in Maine and raised in Connecticut and spent his early adulthood years working as a welder.
He created iconic album covers for Journey and The Grateful Dead, namely the skull and roses that became synonymous with Dead merchandise.
He died in Petaluma, California, due to illness, just shy of his sixty-eighth birthday.
He designed a poster that featured an image of famous beat author Jack Kerouac.