May Sinclair was a bestselling author of her day whose versatile literary output, including criticism, philosophy, poetry, psychoanalysis and experimental fiction, now frequently falls between the established categories of literary modernism. In terms of her contribution to dominant modernist paradigms she was, until recently, best remembered for recasting the psychological novel as 'stream of consciousness' narrative in a 1918 review of Dorothy Richardson's Pilgrimage. This book brings together the most recent research on Sinclair and re-contextualises her work both within and against dominant Modernist narratives. It explores Sinclair's negotiations between the public and private, the cerebral and the corporeal and the spiritual and the profane in both her fiction and non-fiction.