Twelve Letters to Youth, edited by Zhu Guangqian, published by Yuelu Publishing House. The content of this book is twelve letters sent by the author from abroad to a magazine during his stay in Europe. From November 1926 to March 1928, he published twelve articles on youth cultivation in General Magazine (later renamed "High School Student") under the title "A Letter to a High School Student". These articles were later compiled into a book, Twelve Letters to the Youth, which was published by Kaiming Bookstore in March 1929. The purpose is to introduce some academic ideas from the perspective of real life for ordinary people.

Content abstract
These twelve letters are addressed to young people at high school level. They are not addressed by name. Anyone who is a young person at high school level is the addressee and should read these twelve letters.

Each letter was about what the young people were, or ought to be, interested in: reading, self-cultivation, composition, social movements, love, philosophy, and so on. From Mr. Zhu Guangqian's pen flowing, is like the elderly persuasion of earnest words, like the sincerity of old friends talk, read to be kind and natural, a lot of benefits. Although the author expresses his opinions on a topic and makes a general view of the whole, he seems to have a consistent starting point, which is to advise the young people to be serious, to do their best fundamentally, to take care of themselves, and not to follow the secular interests.