Harry Guttman left an enduring artistic legacy as a distinguished member of the Romanian Association of Painters. His paintings and lithographs, exhibited in official Romanian government displays, marked the beginning of a prolific career. Guttman, also an accomplished illustrator, held his first solo show in 1963 at the Magheru Gallery in Bucharest.

His artistic journey led him to Moscow, Leningrad, Budapest, and Prague, enriching his style and earning him recognition, including the third prize at the 1966 International Movie Posters Competition in Moscow for his poster of the film "Goya." In 1974, Guttman immigrated to Israel as the "iron curtain" in Europe loosened.

Critics described Guttman's work as possessing a "celestial cleanness and finesse," with women, dancers, and floating buildings being his primary subjects. These themes conveyed life, tenderness, and the security of freedom, life, and love.

Active in one-man shows across Europe, Israel, and North America, Guttman's artistic journey found its culmination in the quiet suburbs of Tel Aviv. Even after his passing in 2015, his paintings continue to resonate, capturing the essence of a lifetime dedicated to artistic brilliance and storytelling.