The ultimate book of knowledge for kids aged 7 to 9, this thorough children's encyclopedia contains all the homework answers your kids will need, explained clea

This stimulating and comprehensive encyclopedia for children ages 8-12 provides answers to all the questions kids love to ask. Each chapter is jam-packed with m

From computers to the natural world, help your child find out everything they need to know about anything with this fact-packed Children's Illustrated Encyclope

This stunning visual guide explores and explains the greatest inventions, ideas, and discoveries throughout the ages, and introduces their inventors. Discover t

Get children excited about science with this essential, encyclopedic introduction to physics, chemistry, and biology. What makes a firework bang? How do plants