This document provides an overview of key concepts in disaster management including definitions of disaster management, vulnerability, risk, and capacity from various organizations. It discusses the disaster management cycle including prevention, preparedness, relief and recovery. frameworks for action like the Hyogo Framework and Sendai Framework are summarized. Types of vulnerabilities like physical, social, economic and environmental vulnerabilities are outlined. Gender differences in disaster impacts are noted. Risk is defined as the probability of potential losses from hazards given vulnerabilities. Different approaches to risk like acceptance, avoidance and transfer are covered. Other terms like resilience and coping capacity are also defined.