I don't have a favorite book...I have many
I read mostly science fiction /fantasy books ( Mercedes Lackey, Anne Bishop, Anne McCaffrey, Piers Anothony, etc) And also books set in history that try to use real facts but then give them a story. Like, for example, Laura Ingalls Wilder's books, or anything to do with the Holocaust. I'm also semi-addicted to reading about the history of England..dunno why but probably because y'all have had some interesting monarchs and events.
Just call me a bookworm though! I have about 7,000 books in my active library ( books that I reread) and around 5,000 that I packed away as I grew out of (Trixie Belden, Boxcar Children, Babysitter's Club, R.L. Stine etc)
And Harry Potter is SUPER...can NOT wait for it to come out.