Ku Yu Zhai is the studio of Zhou Zuoren. In 1930s, there formed a special group of literati with Zhou Zuoren as the core. They are not only different from the left-wing intellectuals with Lu Xun as the banner, but also different from the so-called liberal intellectuals with Hu Shi as the representative. In the form of essay and accompanied with hundreds of pictures, this book vividly describes the culture psychology, value choice, life attitude and social orientation of this group of literati. This book is gestated for a long time. But when starting to write, the author begins to hesitate. The figure he wants to write is so alien. He cant write from the traditional view. In China, it is a risky business to write a traitor. Other books similar to this one are subject to various accusations. Therefore, in recent years, the author is intermittent in writing this book. His viewpoint seems to be gradually changing and his inner conflict has never stopped.