She was a pioneering intermedia artist and filmmaker. His remarkable body of moving image work, which spanned fifty years, ranged from early performance renderings and poetic filmic experiments to a series of groundbreaking hybrid video-film collaborations with Nam June Paik. Transcending and transforming media as he explored and merged film, video, expanded cinema, electronic manipulations, performance and installation, he created and collaborated on seminal intermedia projects with numerous artists, filmmakers, musicians and performers. Yalkut was also active as a teacher, curator and writer; his 350-page manuscript Electronic Zen is an essential cultural history of the nascent alternative video scene.