This document provides an introduction and guidelines for first aid. It defines first aid as immediate temporary treatment given prior to medical assistance in cases of emergency, injury, or illness. The objectives of first aid are to alleviate suffering, prevent further injury or danger, and prolong life. Key principles of first aid include assessing for life-threatening conditions like airway obstruction or severe bleeding and treating the most serious injuries first while activating medical assistance. Guidelines cover initial response, primary and secondary surveys of victims, examination techniques, and general rules of treatment. Characteristics of a good first aider are listed as well.