This timeless encyclopedia covers children's favorite topics, all in a friendly, easy-to-read Q&A format, perfect to dip into and browse. If your child is always asking questions, from "how do airplanes fly?" to "why do zebras have stripes?" and everything in between, this is the book for them. Shaped by children's interests and their insatiable curiosity, this is a book that children will read again and again. Alongside the children's questions and the expert answers are beautiful illustrations, photographs, and diagrams to bring every topic to life in rich detail and with perfect clarity. is essential reading to encourage curious kids to keep questioning the world around them.