Hi all, I’ve published my own answers to some of the exercises in Brent Yorgey’s Typeclassopedia: Github hosted HTML preview: http://htmlpreview.github.io/?https://github.com/capn-freako/Haskell_Misc/bl... Github source repository: https://github.com/capn-freako/Haskell_Misc/tree/v0.5/Typeclassopedia Thanks to Conal Elliott and Phil Ruffwind for their help. -db