An introductory textbook to Lattice Boltzmann methods in computational fluid dynamics, aimed at a broad audience of scientists working with flowing matter. LB has known a burgeoning growth of applications, especially in connection with the simulation of complex flows, and also on the methodological side. "It is important to register that this book in underpinned by strong pedagogical principles. This is not an arcane monograph but rather a text to get to grips with this extremely disparate topicone is confident that this book will serve very well the community of researchers who ply their trade using the Lattice Boltzmann equation." -- K. Alan Shore, Contemporary Physics Journal