Even Cowgirls Get the Blues is a 1976 novel by Tom Robbins.
"Cowgirls ..." has been considered by Gus Van Sant to be a 'hippy' novel. Robbins writes short chapters filled with philosophical asides and quips (such as noting that because amoebae reproduce by binary fission, the first amoeba is still alive), often speaking to the reader (chapter 88 begins with the narrator noting that the book now has as many chapters as a piano has keys).