Hats with horns, flying dragons...you may think you know everything there is to know about Vikings, but think again With stunning visuals and energetic, impactful design, and full of fun facts and surprises, readers won't stop until they've learned everything about Vikings.

They fix spacecraft, dance, tell jokes, and even clean your carpet From the tiniest robo-bees to gigantic factory machines, robotics is all around you. This technology isn't just for science-fiction anymore -- it's real and more relevant than ever. With stunning visuals and energetic, impactful design, readers won't stop until they've learned everything there is to know about robotics.

Scaly, slithery, toothy, or shelled, reptiles have been around for a long time. So it's no wonder these cool, crazy critters have some pretty incredible looks and skills. Readers won't stop until they've learned everything there is to know about reptiles in this bold, bright book, packed with photos, facts, and fun.

What do great white sharks and pygmy hedgehogs have in common? They're both predators Big and small, the predators in this book have developed some cool, amazing, and sometimes freaky skills to keep them on top of the food chain. Readers won't stop until they've learned everything there is to know about predators in this bold, bright book, packed with photos, facts, and fun.