Published in 1974 after being rejected by more than 100 other publishers, Zen and the Art of Motorcycle Maintenance, was the father-son story of a motorcycle trip across the western United States. Loosely autobiographical, it also contained flashbacks to a period in which the author was diagnosed as schizophrenic. The book quickly became a best-seller. Pirsig said its protagonist “set out to resolve the conflict between classic values that create machinery, such as a motorcycle, and romantic values, such as experiencing the beauty of a country road”.