Theory of simulation methods for lattice and defect energy calculations in crystals.- Theory and calculation of defect entropies.- Characteristic volumes of point defects in tonic crystals.- Free energy calculations for crystals.- Molecular dynamics simulations of crystalline ionic materials.- Ab initio cluster calculations for defects in the solid state.- Computational methods for the electronic structure of defects in insulators.- Interatomic potentials in solids.- Potentials in metals.- Interionic potentials in ionic solids.- Interatomic potentials in covalent and semi-covalent solids.- Defect calculations for ionic materials.- Point defect calculations in metals.- Defect calculations in semiconductors.- Computer modelling of complex and massively disordered crystalline solids.- Aspects of the chemistry of phyllosilicates and intercalation in vermiculites.- Aggregation and precipitation in alkali halides.- Computer simulation of fast ton conductors.- Computer simulation of ionic crystal surfaces.- Long range order in non-stoichiometric oxides.