Callie Barkley is a huge animal lover. She fantasized of having her own cat or dog as a child, until she found she was allergic to most of them. During this time, she understood there were a lot of critters in the world who needed to be loved. She now resides in Connecticut with her husband and two children. They live with ten fish and an ant farm that is constantly active.
- The Critter Club Collection: A Purrfect Four-Book Boxed Set: Amy and the Missing Puppy; All about Ellie; Liz Learns a Lesson; Marion Takes a Break
- The Critter Club Ten-Book Collection: Amy and the Missing Puppy; All about Ellie; Liz Learns a Lesson; Marion Takes a Break; Amy Meets Her Stepsister;
- Liz's Pie in the Sky, 23
- Marion and the Secret Letter, 16
- Amy Is a Little Bit Chicken, 13