The Visionary Architect of the Avant-Garde Jiro Yoshihara stands as a monumental figure in Japanese postwar art, recognized primarily for his leadership within the Gutai Art Group—a movement that irrevocably altered the trajectory of avant-garde painting. Born in Osaka in 1905, Yoshihara’s artistic journey began without formal training, nurtured instead by a profound, self-taught passion for the medium. Growing up in the wealthy and c…