The book "Mathematical Models of Granular Matter" offers a comprehensive analysis of the unique properties of granular materials that distinguish them from other forms of condensed matter. It highlights the challenges associated with the mathematical modeling of granular flows and provides various perspectives on current research trends in the mechanics of granular matter. The authors, Gianfranco Capriz, Pasquale Giovine, and Paolo M. Mariano, discuss fundamental questions, numerical methods, and experimental results to present a complete picture of the subject. The different chapters introduce readers to various approaches and techniques, while new models are presented that describe granular bodies as complex systems. Additionally, results related to the analysis of inelastic Boltzmann equations and the Gallavotti-Cohen symmetry are addressed.