I think the fact that your t bought a book about Aspergers speaks volumes about how much she cares about you. Honestly, she did not have to do that. Many Ts do not have much experience with Aspergers clients, it is a disorder that is treated with very specific techniques. So your t might be a little worried that she's not gohbg to be helpful enough. But she got the book so to me it says she wants to do all she can.