1. Magic Tree House by Mary Pope Osborne (Random House)
2. Clique by Lisi Harrison (Little Brown)
3. Junie B. Jones by Barbara Park (Random House)
4. The Sisterhood of the Traveling Pants by Ann Brashares (Delacorte)
5. Harry Potter by J.K. Rowling (Scholastic/Levine)
6. Hannah Montana (Disney Publishing Worldwide)
7. Dora the Explorer (Simon Spotlight)
8. A Series of Unfortunate Events by Lemony Snicket (HarperTrophy)
9. Warriors by Erin Hunter (HarperCollins)
10.Alex Rider Adventures by Anthony Horowitz (Puffin)
11.Artemis Fowl by Eoin Colfer (Miramax/Hyperion)
12.High School Musical> by N.B. Grace (Disney Publishing Worldwide)
13.Captain Underpants by Dav Pilkey (Scholastic Blue Sky)
Used with permission, copyright Publishers Weekly 2007; a full listing in all categories can be found at www.publishersweekly.com