I’ve seen this book recommended several times in the past few months, even though it was originally published in 1974. It’s an autobiography of a motorcycle trip taken by a father and son, and it’s larger meaning in the journey of life.

While there is a lot of motorcycle maintenance within the book, it is ultimately a philosophical search for meaning and the best way to live a good life. Pirsig’s journey is haunted by a ghost, Phaedrus, which helps him confront the difficult situation he’s in with his son and the impact his son’s illness will have on their relationship.