The document summarizes the state of Japan's e-commerce market based on a presentation by Simon Tai from Ryohin Keikaku Co., Ltd. It provides statistics on the size and growth of Japan's e-commerce market. It also examines consumer behaviors like frequency of online shopping by age and gender, top purchasing categories, and preferences and concerns regarding online shopping versus traditional retail. Key issues and challenges in Japan's e-commerce market are also reviewed such as delivery delays, product quality issues, and logistics.