This monograph is the first academic art historical treatment of Dan Basen, the result of two years of research drawing on letters, diaries, archival footage, interviews, and long-lost ephemera. From gallery shows to philosophical musings, from queer eroticism to Dadaesque provocations, Basen’s work reveals a complex artist who bridged genres with visionary intensity and often, self-destruction. Dan Basen’s refusal to conform may explain his marginalization. Yet his art was collected by major figures like the Rockefellers and displayed in key institutions. With renewed scholarly interest in outsider and folk traditions, Basen’s legacy, marked by raw experimentation and fierce independence, deserves a rightful place in the broader narrative of postwar American art.