One hundred thousand Why is a set of popular science books for teenagers edited and published by Children's Publishing House in the early 1960s. The writer is Han Qide. In the past 50 years, this set of books has been published in six editions, and the cumulative circulation has exceeded 1 100 million copies. It is a scientific enlightenment book for several generations of young people in New China, and has become the first brand of original popular science books in China. It has played an active role in spreading knowledge and popularizing science, and has influenced generations of young people to embark on the road of science. Influenced by it, books with the title of "100,000 Why" emerge in an endless stream, becoming synonymous with children's popular science books.

The sixth edition of One Hundred Thousand Why was first published on August 20 13 13, and once again entered the readers' field of vision with a brand-new look. Compared with the fifth edition, nearly 90% of the contents in the sixth edition are brand-new "why".

The Story of 365 Nights is a children's book published by Beijing Yanshan Publishing House in 2007. The writer is Cui Jianlin.

Content abstract: In a beautiful and carefree childhood, children all over the world are reading classic fairy tales that have been circulating for a hundred years, and they are influenced by different languages. These classic fairy tales are deeply imprinted in the hearts of readers from generation to generation in the world, triggering people's call for truth, goodness and beauty.