Still more study...

Notice the books and authors on the shelves of your coaches and read them – Look to see who his/her favorite author is. What sorts of books do they read? Ask to borrow a book from his/her shelf. Buy that book to study for yourself. The point here is that if you read what they read you stand to understand them better and that frame of reference will aid your understanding and will fuel discussion on matters of greatest interest to the coach.