The book "Kinetic Theory of Gases in Shear Flows" by Vicente Garzó offers a comprehensive analysis of kinetic gas theory based on Boltzmann's work from 1872. It highlights the development and context of the Boltzmann equation, which applies to dilute gases with short-range intermolecular forces. The investigation spans spatial and temporal scales that are significantly larger than the corresponding atomic scales. The work addresses the application of the Boltzmann equation to systems that are far from their equilibrium state and emphasizes the mathematical complexity that often hinders access to the contents of the equation. Particular attention is given to the historical study by Ikenberry and Truesdell from 1956, which presented an exact solution for Maxwell molecules under shear flow conditions. This book is a valuable resource for professionals and students interested in rheology and kinetic theory in non-equilibrium states.