One of my ideas I've been kicking around for the last year or two has been to write a book on learning to read code properly. I would submit that one of the greatest weaknesses of your typical programmer is that they don't know how to read other peoples' code.

On another note, being able to read other peoples' code is one of the strengths of Haskell. The Functor/Monad/Monoid/etc stuff becomes a way to know, based on a common vernacular, exactly what kind of interface is being exposed and what sort of data structures you're working with.