Art Mortimer was born in Long Beach, California, and is a graduate of Occidental College in Eagle Rock, California. He moved to Santa Monica in 1965, and has been working as a free-lance artist since 1969, doing both commercial and fine art. He painted his first mural in 1971 on the side of the house he was living in, at the beach in Santa Monica. Also in 1971 he worked with artist/film maker Terry Gilliam in London on a series of short animated films that became a part of a Mary Feldman television series shown in the USA. He gave up his commercial art business in 1988 to concentrate on murals, paintings and drawings. He lived and worked at the beach in Santa Monica until December, 2002, and now lives in West Los Angeles.