Hi cause, you're comment made me think of the following...
I have always wondered about the concept of someone making a guide of how to do what they do, which made them successful.
It's like, here's the secret to life but it only works if only a few know it, and now I've made a book to show the masses how to be successful therefore none of us will be but yet I made money on the scheme.
I used to buy books on how to draw when i was a kid. They never resulted in my learning anything useful. I could never draw what they did or I could only draw exactly what they did. Years later i just drew stuff on my own and got better.
Also at goodwill I see a ton of get rich quick books. I guess they failed.
So I see you are already good at poker, and I suspect you don't need any books.
But let us know if the books helped or were a waste of time.
The last thing I bought was house goods. Boring I know.
Gasoline
Food
Blah