Bullfrog Books

A large reptile soars through the sky. What is this creature? It is a pterosaur! In Pterosaur, readers learn all about this reptile's appearance, behavior, and how it survived in the time of… More →

Did you know that many Ferraris are red? Do you know what the Ferrari logo is? In Ferrari, beginning readers learn about this car brand, when and where the cars were first made, what its logo More →

In Thoroughbred Horses, beginning readers will learn about the physical features, characteristics, and common duties of thoroughbred horses. Vibrant, full-color photos and carefully leveled… More →

In American Paint Horses, beginning readers will learn about the physical features, characteristics, and common duties of American paint horses. Vibrant, full-color photos and carefully… More →

Did you know some Corvettes race? Or that they're made in Kentucky? In Corvette, beginning readers learn about this car brand, when and where the cars were first made, what its logo… More →

What is mass? How can we measure it? In Mass, beginning readers learn about mass and matter and how they apply to their everyday lives. Vibrant, full-color photos and simple diagrams… More →

Giddyup! Discover the physical features, characteristics, and common duties of your favorite horse breeds. Each book highlights the breed's features with a labeled diagram, and a picture… More →

A small dinosaur catches prey with its long, sharp claws. What is this creature? It is a velociraptor! In Velociraptor, readers learn all about this dinosaur's appearance, behavior, and how… More →

What is volume? How can we measure it? In Volume, beginning readers learn about volume as it applies to measuring liquid and solid ingredients to bake cookies and fill a cookie jar. Vibrant,… More →

Did you know that many Ferraris are red? Do you know what the Ferrari logo is? In Ferrari, beginning readers learn about this car brand, when and where the cars were first made, what its logo More →

A massive marine reptile lifts its head from the dark water. What is this creature? It is a plesiosaur! In Plesiosaur, readers learn all about this reptile's appearance, behavior, and how it… More →

In Thoroughbred Horses, beginning readers will learn about the physical features, characteristics, and common duties of thoroughbred horses. Vibrant, full-color photos and carefully leveled… More →