註釋
This highly popular and long-running series has been revamped for a new generation of readers, with a clean, crisp redesign and colourful covers. The series explores questions that young readers ask about the world around them in an unrivaled child-friendly style. The conversational format is perfect for delivering solid information in a natural, amusing and imaginative way. Taking as its starting point a child's desire to understand the world, this illustrated book focuses on our planet, asking questions such as: why does the wind blow?, how big was the largest snowman ever built?, and, why do animals sometimes fall out of the sky?