Modelling and simulation were introduced to the earth sciences in the 1960s. Modelling has proven its worth and now it is an accepted procedure for analyzing and solving geological problems. The papers in this collection are focused on modelling sediment deposition and sedimentary sequences and have a decidedly practical flavour. Some of the leading simulation packages, such as CORRELATOR, SEDFLUX, SEDpak, SEDSIM, STRATA, and STRATISM are applied to problems in hydrocarbon exploration, oil production, groundwater development, coal-bed appraisal, geothermics, and environmental diagnosis. All of these subjects fall under the broad heading of sedimentary basin analysis. The 15 papers in this volume are written by experts from academia and industry. The contributions represent the status of geologic modelling and simulation at the start of the 21st century, and should give the reader an insight into research problems and their possible solutions.