Functional programming in Scala, one of my favorite functional programming books if you take the time to do each and every exercise. Coupled with it's solid Git

Functional programming in Scala, one of my favorite functional programming books if you take the time to do each and every exercise. Coupled with it's solid Github repo (https://github.com/fpinscala/fpinscala https://github.com/fpinscala/fpinscala) and companion book (https://leanpub.com/fpinscalacompanion https://leanpub.com/fpinscalacompanion), it's a winner.