they're supposed to be the books Harry has. They're "Quidditch Through The Ages" and "Fantastic Beasts And Where To FInd Them" The really whimsical part is that she didn't accredit the books to her own name. She "signed" them with the names of the author's that she said wrote them in the books. "Newt Scamander" and "Albert (Not sure if that's right) Waffaling"