David A. Adler

When a thief takes the box office money at the school play, Cam uses her photographic memory to solve the mystery.

While visiting Aunt Molly at a fancy downtown hotel, Cam uses her photographic memory to help one of the guests find her stolen luggage and pet cat, and to catch the thief.

When Cam's grandparents are robbed on their way to her parents' surprise birthday party, Cam uses her photographic memory to solve the mystery.

Cam uses her photographic memory to catch a thief disguised as a ghost.

Here's a fact: My new friend Calvin Waffle is 100% Weird Danny Cohen and Calvin Waffle are two very different kids. Danny likes playing baseball; Calvin enjoys strange experiments. Danny follows the rules at school; Calvin tries to drive his teacher crazy. Danny and Calvin decide to team up for the big jelly bean experiment. Will it lead to trouble? Maybe. Will they have fun trying? You can count on it.

Biography of the black woman who escaped from slavery to become famous as a conductor on the Underground Railroad.

On her first day of fifth grade, Cam Jansen uses her photographic memory to help the police find a car thief. Includes a memory game.

When a woman's poodle disappears during a boat ride around the city, Cam uses her photographic memory to solve the mystery.

Ten-year-old Cam, possessor of a photographic memory, and her friend Eric investigate what seems to be a brief appearance of U.F.O.s.

Fifth-grade sleuth Cam Jansen uses her photographic memory to catch a thief during a department store sale.