The books written by Jingdong Vice President Cai Lei mainly focus on themes such as e-commerce industry, Internet development and corporate management, covering his many years of work experience and thinking.

The most famous one is "Upstream: Jingdong's Continuous Innovation Road", which records the process and experience of Jingdong from its establishment to development, as well as its innovation and exploration in the e-commerce industry.

In addition, he has also published works such as "Internet Evolution" and "Retail Revolution", aiming to explore how enterprises cope with changes and innovations in the Internet era. These books have certain reference significance for understanding the e-commerce industry and corporate management.