Bullfrog Books

In Shetland Ponies, beginning readers will learn about the physical features, characteristics, and common duties of Shetland ponies. Vibrant, full-color photos and carefully leveled text will 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 Arabian Horses, beginning readers will learn about the physical features, characteristics, and common duties of Arabian horses. Vibrant, full-color photos and carefully leveled text will… 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 →

What is a solid? What are its properties, and how can it turn to a liquid? In Solids, beginning readers learn about this state of matter and how it applies to their everyday lives. Vibrant,… More →

Did you know that Lamborghini doors swing up? In Lamborghini, beginning readers learn about this car brand, when and where the cars were first made, what its logo is, and some of its most… 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 →

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

Did you know that a Porsche's engine is in the back of the car? In Porsche, beginning readers learn about this car brand, when and where the cars were first made, what its logo is, and some… 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 →