The book "Foggy Horizons: Unraveling the Potential of Fog Computing" provides a comprehensive exploration of fog computing, a decentralized computing paradigm that extends cloud computing to the edge of the network. The book begins with an introduction to fog computing, defining its key concepts, evolution from cloud computing, and fundamental principles. It then delves into the architecture, components, characteristics, advantages, challenges, and technologies associated with fog computing.The subsequent chapters explore various applications and use cases of fog computing across different industries, including smart cities, healthcare, manufacturing, transportation, and retail. The book highlights how fog computing enables real-time data processing, analysis, and decision-making at the edge of the network, driving innovation and transformation across diverse domains.