Why can no one write a truly advanced poker book ?

[punter11235]

I think its because not many people know anything about that game.
Many great highstakes players learnt by experience how to beat others and they dont even understand why they are beating them (some of them dont even get basic math like how to calculate needed folding equity which doesnt stop them to beat 50/100 NL).
Probably some of the best out there have some more real understanding of the game but so far we didnt see them writing a book (but maybe with recent Matt Flynn book and people like J.A. Sucker and the like coming to the market maybe its about to change).