Indigenous Knowledge (IK) has been practiced in communities over time. There is news after major disasters on how IK has been effective in the protection of the lives and properties of people and communities. Some IK has been orally transmitted, and some are documented by local organizations sporadically. People and communities have developed their coping mechanisms over time, which is reflected in the form of IK. While many organizations recognize the importance of IK for Disaster Risk Reduction (DRR), there have been few systematic studies that analyze the principles of IK and its applicability to the modern context. This unique book is one of the first attempts of systematic study of IK in DRR. The key challenge will start after the publication of this book: to make it a useful reference material for decision making, research, implementation, and documentation. The target audience of the book consists of professionals, practitioners, researchers, and graduate students in the related field.