1. The Hunger Games (hardcover and paperback), Suzanne Collins, Scholastic
2. Magic Tree House (hardcover and paperback), by Mary Pope Osborne, Sal Murdocca (Illus.), Random House
3. The Ranger's Apprentice (hardcover and paperback), by John Flanagan, Philomel
New in Series: Halt's Peril
4. Diary of a Wimpy Kid (hardcover), by Jeff Kinney, Amulet
5. Ivy & Bean (hardcover and paperback), by Annie Barrows, Sophie Blackall (Illus.), Chronicle
6. Percy Jackson and the Olympians (hardcover and paperback), by Rick Riordan, Miramax
7. Pretty Little Liars (hardcover and paperback), by Sara Shepard, Harper
8. Harry Potter (hardcover and paperback), by J.K. Rowling, Scholastic/Arthur A. Levine Books
9. The 39 Clues (hardcover), by Margaret Peterson Haddix, et al., Scholastic
10. Fancy Nancy I Can Read Series (paperback), by Jane O'Connor, Robin Preiss Glasser (Illus.), Harper
*Published Thursday, October 14, 2010 (for the sales week ended Sunday, October 10, 2010). Based on reporting from many hundreds of independent bookstores across the United States. For information on more titles, please visit IndieBound.org