Did you know that a pin head as hot as the sun would kill you from 150km ( 100 miles) away? Or that more people speak Mandarin than any other language in the world? This miniature edition of the best-selling book is fascinating, fun and packed with amazing facts. It covers a vast scope of information—from the Earth, its plants and animals, to its people and their discoveries. What makes rainbows? Why do people wear clothes? How do birds fly? Don’t panic- the answers to these questions and more are inside this clear and simple book.