Eric's Grandma Minnie and Grandpa Max keep hearing someone knock at their door, night and day, but find no one there, so Cam tries to solve the mystery using her amazing memory.

Discusses the life of the pilot who was the first woman to cross the Atlantic by herself in a plane.

From bartering, early forms of currency, credit cards, and digital payment, here is a clear and thorough introduction to money.

"Mo is the youngest kid on the Robins football team. The kids on the rival team tease him for being a 'butterfingers' who's too tiny to catch the ball. But Mo's coach has a plan up his sleeve to turn Mo's little size into a big win for the Robins"--

"Mo plays volleyball at the beach in this next title in the perenially popular, Geisel Award-winning series by David A. Adler! Mo and his parents are enjoying a sunny day at the beach! When the water is too cold to swim, Mo and his dad go for a walk and run into some of Mo's friends who are playing volleyball. After learning the rules, Mo and his dad join in to serve, set, and spike the ball. When the score is tied, will the smallest boy on the team...

Explains the Roman numeral system, which, though very old, is still in use today.

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

Fifth-grade sleuth Cam Jansen uses her photographic memory to solve a monkey smuggling mystery at the city zoo.

A brief account of the life of the "Father of Our Country."

"Mo Jackson is excited for his baseball game, but Coach Marie tells him he is batting last and playing right field, again. Will Mo ever get a hit?"--