Book excerpt: This is the first book to fully review the Mexican health system, its organization and governance, health financing, health care provision, health reforms, and health system performance. The book is based on the most recent data and focuses on the three main components that constitute Mexico’s health system: 1) employment-based social insurance programs, 2) public assistance services for the uninsured, and 3) a private sector composed of service providers, insurers, and pharmaceutical and medical device manufacturers and distributors.