This document provides an introduction to Qigong, an ancient Chinese practice of working with energy. It explains that knowledge of Qigong was historically kept secret in China but can now be shared globally online. It also summarizes the book "Qigong Fever" which describes the rise and fall of the Qigong movement in China under different political regimes. The author hopes to spread knowledge of Qigong widely as it can benefit personal, social and global health by teaching people to understand and manage their own energy systems. A training program is included to enable readers to start practicing Qigong.