If you mean how have we been getting along, I would think we've been doing splendidly! I'm still growing used to my new role, but Spike is the same as he ever was - although sometimes he bows in my presence. It kind of bothers me, actually, but every time I give him a reminder he forgets... I've given up at this point...
I have paid it a visit every now and again, although the books there don't belong to me and I don't take them outside of the library. Yes, there is no one staffing the place, but that doesn't mean that I get to stake claim on the property. That being said, I do like to read through the journals scattered about there. I'm a bit busy organizing my library in my new castle, so I haven't gone out to those books lately, though.
O-oh... Haha... Can... Can you not do that? Please? I know I'm a princess, but...I'm hardly above it all...
Whoa, whoa! Haha! I-I don't even know enough about being a princess to teach a student, let alone take one in indefinitely! I haven't considered it, no, and hopefully I don't have to any time soon...
Also, as for the second question, I don't know if I could choose! I love so many different types of books! I think if I absolutely had to, I would pick educational books, specifically those focused on magic - the 'how-to-do-its', instructionals. I tend to learn the most from those.