This book aims to teach children about natural phenomena such as the sky and clouds by telling the story of a kitten and a baby observing the white clouds in the sky together. This kind of popular science children's stories can stimulate children's curiosity about the world and expand their knowledge of the environment and nature. At the same time, reading such stories can also cultivate children's ability to solve problems, think and reason, observe and analyze, and promote the comprehensive quality development of emotional intelligence and language expression ability.