If it is Earth magic you need a book for, I'll share mine with you, as long as you don't plan on doing something as foul as necromancy. And as long as you're nice. And you won't try to have someone steal it. Because this is my moooost prized possession, because you see, it was a gift to me and has all sorts of sentimental value!
Just seek me out, and I am Zeth and it is nice to mee...oh..uh...dream with you!
Oh, but if you're looking to buy one, I do not have one for sale.