★ A set of flashlight popular science books with fun and knowledge! This series of books is designed for children over 7 years old. Transparent film is used with simple and magic paper "flashlight" to form a luminous effect. Children can move paper flashlight between transparent film and black pages, and they will see the illuminated picture. Change the reading experience of traditional popular science books and stimulate children's curiosity to explore the world independently!

★ The theme selects the prehistoric world that children are most interested in, matches with lovely hand-painted illustrations, conforms to children's cognitive characteristics, and easily develops hands-on ability and inquiry ability!