Contents: Overview of Defect Processes Induced by Electronic Excitation in Insulators (N Itoh); Excitonic Mechanism of Defect Formation in Alkali Halides as Spontaneous Symmetry Breaking (Y Kayanuma); Luminescence and Self-Trapping of Excitons in Alkali Halides (H Nishimura); Time-Resolved Studies of Photochemistry in Alkali Halides (M Hirai); Cascade-Excitation Spectroscopy for Recombination-Induced Defect Production in Halide Crystals (K Tanimura); Atomic Processes Induced by Electron Excitation at Surfaces (N Itoh);