On July 26, 2018, Pinduoduo, which was founded three years ago, was listed on Nasdaq. This move was talked about by the business community. Why has Pinduoduo achieved such great success? What exactly is Pinduoduo "fighting" for? This is the focus of the author. This book is compiled by the author on the basis of Pinduoduo's daily observation notes. It combines the characteristics of Pinduoduo's e-commerce platform and adds content about platform operations and platform store operations. It will help entrepreneurs who want to understand Pinduoduo and open a store on Pinduoduo to read this book better.