Mr. Pirsig authored just two books, the most well known being Zen And The Art Of Motorcycle Maintenance in 1974. Zen sold over one million copies and is generally considered a classic American narrative. RIP Mr. Pirsig.
http://www.npr.org/sections/thetwo-...maintenance-author-robert-m-pirsig-dies-at-88
http://www.npr.org/sections/thetwo-...maintenance-author-robert-m-pirsig-dies-at-88