On a completely unrelated note to my above posts, the topic of "beliefs" would be an interesting book.
Beliefs play a pretty fundamental role in reality, yet they seem inherantly nebulous to work with. Tie that in with the LoA, and you'd have a fairly interesting book, especially if it had good applicability (since that's what people need in this area). It'd be also be cool to see how you could blend in the principles with the topic of beliefs.
A sort of "what beliefs are, how to choose them, how to find them, how to apply new ones, and how to change existing ones in a way that works with the fundamental mechanics of reality (which I'd probably say is the LoA; there has to be "some" fundamental mechanism)."