This text presents a synthesis of research on the sedimentary geology of fluvial deposits, setting out in detail the methods for the field and subsurface study of these sediments, and providing geologists with detailed descriptions of the building blocks of fluvial stratigraphic units, from lithofacies through architectural elements and depositional systems, to large-scale stratigraphic sequences and basin-fill complexes. The book also contains a new classification of oil and gas fields in fluvial reservoirs, with descriptions of selected case examples.