Coastal, estuarine, fluvial and submarine morphodynamics encompass some of the leading processes shaping our planet. They stem mainly, but not only, from the interaction of water in motion and movable sediment boundaries, resulting in morphological changes produced by erosion, transport and deposition of sediments that generate a variety of landscapes and seascapes over time. Morphodynamics allows for a better understanding and interpretation of self adjustments in drainage basins, longitudinal river profiles and shorelines shapes, as well as characteristic features such as beach cusps, bed forms such as dunes, and channel patterns. This collection of about 150 contributions should be invaluable to wetland ecologists, fish biologists, engineers, geomorphologists, fluvial engineers, coastal scientists , as well as to scientists interested in processes responsible for earth-surface landscape evolution.