"Exiting Nirvana" is a memoir written by Clara Claiborne Park and first published in 2001. The book tells the story of Park's son, Jessy, who was diagnosed with autism in the 1960s, at a time when autism was not well understood or widely recognized. The book chronicles the challenges that Park and her family faced in caring for Jessy, including the frustration of not knowing how to help him and the judgment of others who did not understand his condition. Through her experiences, Park explores the history and evolution of autism research and treatment, as well as the larger societal attitudes towards people with disabilities. The book is praised for its emotional honesty and powerful portrayal of the impact of autism on families. It has been influential in raising awareness and understanding of autism and has been widely read by parents, caregivers, and professionals in the field of developmental disabilities.