Crossing the boundaries of a single-author study, this book uncovers Flann O'Brien's attempt to forge a commercially successful Irish literary project from international avant-garde influences.Situating O'Brien's early work within a global context, the book uses new evidence of his collaborations to reimagine him as a networked writer. O'Brien drew upon experimental techniques to generate new categories of writing, rethink Irish culture and reach a wide audience. This study illuminates a network of cultural production around O'Brien, linking his work to English comic magazines, Dadaist photomontage, Expressionism, Central European theatre, and renowned writers like Jorge Luis Borges and Franz Kafka.By re-examining Flann O'Brien within the context of the momentous global political and cultural crises that spurred avant-garde experimentation, the book also rewrites the cultural history of Ireland in the 1930s and 1940s.