The saying about Haskell is that it has the steepest unlearning curve. It probably helps to have seen some abstract algebra since many of its ideas come from t

The saying about Haskell is that it has the steepest unlearning curve. It probably helps to have seen some abstract algebra since many of its ideas come from there. The online book learnyouahaskell.com is pretty readable though. As that guy was a big executive whose time was interchangeable with money, he might have had better luck treating FP as a topic in math that he was having trouble with, and hiring someone for one-on-one tutoring, either in person or online. It might have gotten him through the various stumbling blocks quicker.