Discover the fun encyclopedia covers a wide range of knowledge. It can not only satisfy children's desire to explore the unknown world, but also provide a lot of scientific knowledge and humanistic and historical knowledge. At the same time, this book adopts an easy-to-understand and illustrated way to make abstract scientific knowledge lively and interesting. Stimulate children's curiosity and thirst for knowledge through interesting stories and activities, and let children study in a relaxed and happy atmosphere.