Annual Reports in Computational Chemistry, Volume 18 in this important serial, highlights new advances in the field, with this new volume presenting interesting chapters on a variety of timely topics, including Atomistic modelling of surface plasmon resonances, Recent Advances in Solvation Modelling Applications: Chemical Properties, Reaction Mechanisms and Catalysis, Entropy considerations in catalysis, High level computational chemistry methods, and Computational Organofluorine chemistry.