This book considers theoretical models, calculations, and computer methods for a wide variety of states and processes in different types of solids and surfaces. Topics include semiconductors and ceramic surfaces, grain boundaries, defects and impurities, and such processes as growth and catalysis. Computer simulations and calculations using parallel architectures are included. Outstanding contributions from distinguished leaders in their respective fields make this volume an excellent guide to the recent developments in modelling processes. It will be indispensable to researchers in many areas of solid materials.