The book "High Temperature Gas-Solid Reactions in Earth and Planetary Processes" offers a comprehensive analysis of the role of gas-solid reactions in various geological contexts and temperatures. It highlights how these reactions contribute to the distribution of chemical elements on planetary bodies and their significance for the early formation of the solar system, volcanism, and metamorphism. The content is based on a variety of approaches, including experimental and theoretical methods, to investigate the mechanisms of these reactions. Additionally, advanced techniques in computational chemistry are employed to analyze the properties of molecular clusters and the interactions between minerals and gases. The book also includes specialized analytical methods for characterizing the reaction products, which often occur in the form of thin or dispersed films. The work is complemented by numerous examples from field research, laboratory investigations, as well as thermodynamic modeling and kinetics of gas-solid reactions on Earth, Venus, and beyond.