I'm sure a lot of people will put Harry Potter or the Twilight series for this. It took me a few minutes to think about this and I stared at my bookshelf for a while. I do have all of the books for the Harry Potter and Twilight series but other than that, my book collection is almost strictly non-fiction, educational, or true-crime novels. Then, I found
I love Wicked and the other books that came after Wicked (Son of a Witch and a Lion Among Men). My second favorite movie is the Wizard of Oz and I absolutely love the twist that the author gave to a story that has been around for such a long time!