This is a set of three volumes of picture books for children from 3 to 6 years old. In the Country of Clouds, three little clouds - Qiaoqiao the white cloud, Momo the dark cloud, and Yingying the colorful cloud - are vividly portrayed through their adventures and stories. The story's plot is full of ups and downs that involve family affection, friendship, ridicule, firmness, selflessness, and optimism. These stories can arouse the resonance of the children and inspire them in the realization of their self-worth.