Functions in Free-Format RPG IV

I found the book to be well-organized and -written however as someone already comfortable using most of the built in functions within V6R1 ILE RPG I was hoping for tips that would help me move to a more advanced level of ILE RPG & functions. If you're relatively new to ILE RPG development or aren't comfortable using functions, this would be a good reference to get more out of them.

The book is well written, clear, logical, with good examples. It makes the transition to free format much easier.