This series is a set of popular science enlightenment picture books for children aged 3 to 6 years, which integrates knowledge, exploration and interest. The language is simple and interesting, the international illustrators carefully match the pictures, and the illustrations are real and vivid, which can stimulate children''s interest in popular science reading. From the emergence of the earth, dinosaurs and humans, this book traces the earth''s 460 million years of history. Here, you will find how amazing the common home of mankind is that the earth has evolved from its appearance to its present state.