The basic approach bonding in tetrahedral semiconductors elastic properties of semiconductors the dielectric properties of semiconductors semiconductor energy bands electronic properties effects of lattice distortions impurities and defects bonding in ionic crystals elastic properties of ionic crystals dielectric properties of ionic solids covalent insulators, SiO2 simple metals, electronic structure simple metals, bonding properties transition metals f-shell metals transition-metal (AB) compounds other transition and f-shell compounds surfaces and interfaces other systems.