Lattice Gas Models -- Basic Boltzmann Gas Concepts -- Lattice Boltzmann Models (LBMs) -- Single component, single phase (SCSP) LBM -- Single Component, Multiphase (SCMP) LBM -- Multicomponent Multiphase (MCMP) LBM -- Solute Transport -- LBM for Macroscopic Porous Media -- Conclusions. Lattice Boltzmann models have a remarkable ability to simulate single- and multi-phase fluids and transport processes within them. A rich variety of behaviors, including higher Reynolds numbers flows, phase separation, evaporation, condensation, cavitation, buoyancy, and interactions with surfaces can readily be simulated. This book provides a basic introduction that emphasizes intuition and simplistic conceptualization of processes. It avoids the more difficult mathematics that underlies LB models. The model is viewed from a particle perspective where collisions, streaming, and particle-particle/particle-surface interactions constitute the entire conceptual framework. Beginners and those with more interest in model application than detailed mathematical foundations will find this a powerful "quick start" guide. Example simulations, exercises, and computer codes are included. Working code is provided on the Internet.