Advances in Natural Gas: Formation, Processing, and Applications. Volume 3: Natural Gas Hydrates comprises an extensive eight-volume series delving into the intricate realms of both the theoretical fundamentals and practical methodologies associated with the various facets of natural gas. Encompassing the entire spectrum from exploration and extraction to synthesis, processing, purification, and the generation of valuable chemicals and energy, these volumes also navigate through the complexities of transportation, storage challenges, hydrate formation, extraction, and prevention. In Volume 3 titled Natural Gas Hydrates, the fundamental aspects of natural gas hydrates, their associated disasters, and case studies are introduced. This book delves into the intricate details of hydrate structures, physio-chemical properties, and thermodynamics, offering a comprehensive understanding. This volume also explores hydrates as an energy source and covers their dissociation methods. A significant focus is placed on the challenges of natural gas hydrates formation in pipelines, accompanied by prevention techniques. Additionally, this book discusses the discovery and extraction of natural gas hydrates from oceans, shedding light on related geophysical indicators.