This repository is a comprehensive Chinese tutorial on reinforcement learning, colloquially known as the Mushroom Book. It is based primarily on Lee Hongyi’s Deep Reinforcement Learning video course and supplements it with materials from Zhou Bolei’s Reinforcement Learning Outline and other classic RL resources. The content is delivered in Jupyter Notebook format, covering foundational and advanced RL algorithms including policy gradient methods, DQN variants, actor-critic approaches, and model-based techniques.