David A Adler

With an emphasis on his early life and the hardships he overcame, this informative biography offers a clear, authentic introduction to one of the country's most important scientists.

When Cam and Eric go on a field trip to the museum with their fifth grade class, Cam-with her photographic memory-makes an interesting discovery: dinosaur bones are missing from one of the exhibits. When no one believes them, they decide to catch the thieves themselves. As they stake out the library, a mysterious milk truck stops by. Cam knows something is wrong. The logo on the truck does not match the logo on the milk carton they drank from at lunch....

No mystery is too great for super-sleuth Cam Jansen and her amazing photographic memory! 
Can Cam help catch the diamond thief? Cam and her friend Eric are sitting at the mall when the jewelry store is robbed. Cam sees the thief, but the police arrest the wrong person. Now it's up to Cam to catch the real criminal!

A package with simple language and detailed drawings conveys information about the life and accomplishments of Thomas Jefferson.

Calvin Waffle doesn't believe in bad ideas. Danny knows his friend Calvin has crazy ideas, so he's not surprised when Calvin suggests they start a Rent-a-Pet business. After all, Calvin's Aunt Ruth wants the boys to watch her dog while she's away, and what better way to get the miniature Collie off their hands than loaning him to a kid in the neighborhood for a few days? But in order to rent a pet, you need a renter. Which Calvin and Danny don't...

A field trip to the zoo is fun for Cam Jansen and her classmates—until lunchtime. Everyone else’s sandwich is safely delivered, but Danny can’t find his anywhere! Only Cam and her amazing memory can crack this mystery.

A jar full of toy dinosaurs, a game of musical chairs, and a smudge of chocolate cake. Can Cam Jansen put the clues together to solve a birthday party puzzle?

At her school?s Green Fair, Cam and her friends are learning how to keep the earth green. Everyone is having fun at the exhibits?until a student?s remotecontrolled car goes missing! Was it stolen? It?s up to Cam and her amazing memory to find Speedy.

Cam and her classmates have a forgetful substitute teacher. First, he forgot the homework assignment. And where did he put his jacket? But when his car keys and cell phone go missing, everyone starts to wonder: did he lose them or were they stolen? Readers will love to click along with Cam as she solves this latest easy-to-read mystery.

There's a new girl in school! Her name is Jenny and she is makingfast friends with Cam and Eric. They're happy to help her find her way around, but when it's time for gym class, Jenny disappears. Where did she go? Is she lost? Did she go back to her old school? Young readers won't be able to resist looking for clues in the story to help Cam and Eric find their new classmate. Follow along as Cam says “Click!” and the search for Jenny begins!...