The document provides lecture notes on introduction to health education. It defines key concepts like health, health education, and principles of health education. It discusses the historical development of health education and how it was recognized as a fundamental tool for attaining health for all at the Alma Ata declaration of 1978. Health education aims to facilitate voluntary actions conducive to health through a combination of learning experiences. The basic principles of health education outlined include making it needs-based, adopting a multidisciplinary approach to understand human behavior, ensuring two-way communication, making it relevant to the target group, and basing it on scientific findings.