Breaking Open the Head: A Psychedelic Journey into the Heart of Contemporary Shamanism is a book written by author and journalist Daniel Pinchbeck, founding editor of the literary journal Open City. Published in 2002, Breaking Open the Head covers, in Pinchbeck's words, the cultural history of psychedelic use, philosophical and critical perspectives on shamanism, and his personal transformation from a cynical New York litterateur to psychedelic acolyte.