Under $20

Geometry? No problem!  This Big Fat Notebook covers everything you need to know during a year of high school geometry class, breaking down one big ...

From the brains behind Brain Quest comes the 2nd edition of the revolutionary World history study guide. Updated to include recent history and revi...

Biology? No Problem! This Big Fat Notebook covers everything you need to know during a year of high school BIOLOGY class, breaking down one big bad...

It’s fun to be smart! This set of two Q&A card decks quizzes kids on all things U.S.A.—history, law, government, folklore, geography, pop cultu...

It’s fun to be smart! This set of two Q&A card decks quizzes kids on their road trip knowledge—state capitals, national monuments and parks, ge...

Caps for Sale is a timeless classic beloved by millions...one of the most popular picture books ever published! This picture book is an excellent c...

Chemistry? No problem!  This Big Fat Notebook covers everything you need to know during a year of high school chemistry class, breaking down one bi...

It’s hands-on science with a capital “E”—for engineering. Beginning with the toppling of the Colossus of Rhodes, one of the seven wonders of the an...

Explore entomology with this hands-on bug guide for kids 8 to 12 From the butterflies in the sky to the beetles underground, there are more than o...

Don't miss the first and bestselling book in the beloved Pete the Cat series! Pete the Cat goes walking down the street wearing his brand-new white...

With an author's note about what big siblings need—extra guidance, reassurance, love—and sweet, engaging artwork, it's no wonder that nearly 4 mill...

Stand back! Genius at work! Encase your little bother in a giant soap bubble. Drop mentos into a bottle of diet soda and stand back as a geyser eru...