So, have you talked to him about what direction he is leaning towards in business?
So many different directions.
I would think he must have some idea?
Not sure what a book is going to tell anyone what way to head.
What kind of goal to reach? how high in business management do you want go? Does he just want to push numbers? Does he want to be a business partner with his own goals of having his own business?
Lots of questions if looking for ideas.