C. A. Trapp is a Professor of Chemistry, University of Louisville, Louisville, Kentucky, USAM. P. Cady is a Professor of Chemistry, Indiana University Southeast, New Albany, Indiana, USA C. Giunta is a Professor of Chemistry, Le Moyne College, Syracuse, NY, USA

• Focus 1: Foundations ; Focus 2: The principles of quantum mechanics ; Focus 3: The quantum mechanics of motion ; Focus 4: Approximation methods ; Focus 5: Atomic structure and spectra ; Focus 6: Molecular structure ; Focus 7: Molecular symmetry ; Focus 8: Interactions ; Focus 9: Molecular spectroscopy ; Focus 10: Magnetic resonance ; Focus 11: Statistical thermodynamics ; Focus 12: The First Law of thermodynamics ; Focus 13: The Second and Third Laws of thermodynamics ; Focus 14: Physical equilibria ; Focus 15: Chemical equilibria ; Focus 16: Molecular motion ; Focus 17: Chemical kinetics ; Focus 18: Reaction dynamics ; Focus 19: Processes in fluid systems ; Focus 20: Processes on solid surfaces