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- Robin Jones Gunn - Christy Miller, Christy and Todd, Katie Weldon, Father Christmas, Sierra Jensen, Sisterchicks EDIT: This includes adult and counting books within the volumes, the total is 32.
- Meg Cabot - All-American Girl, Awaken, Airhead, Princess Diaries 1, 3-6, 9-10
- Ally Carter - Gallagher Girls, Heist Society
- Jen Calonita - Belles, Secrets of My Hollywood Life, Whispering Pines
- Tamora Pierce - Protector of the Small, Song of the Lioness, Trickster's Choice, Battle Magic
- Sarah Dessen - Along for the Ride, Dreamland, Just Listen, Keeping the Moon, Lock and Key, Someone Like You, That Summer, The Truth About Forever
- Janette Rallison - How to Take the Ex Out of Ex-Boyfriend, All's Fair in Love, War, and High School, Just One Wish, My
- Rainbow Rowell - Fangirl, Landline, Attachments
- Marissa Meyer - The Lunar Chronicles
- Suzanne Collins - The Hunger Games
Who is the author you own the most books of?