John Lewin is Emeritus Professor at Aberystwyth University, UK, having also become Dean of Science and then Vice Principal & Pro-Vice-Chancellor at Aberystwyth in the more than forty years that have passed since
British Rivers was first published. He continues with publishing research on rivers and floodplains, now taking advantage of new techniques that have become available on a global scale. This now includes work on the world's largest rivers, but also on human impacts such as from historic settlement, mining and recent vegetation changes in Britain. He is an Honorary Fellow of the Royal Geographical Society.
Guidebook of Applied Fluvial Geomorphology. His particular expertise is ‘hydromorphology’, combining his research in hydrology and geomorphology in a little understood field of knowledge but one which is pivotal to the Water and Habitats Directives as well as to freshwater ecosystems (including their restoration and rehabilitation) and the impacts of climate change, notably severe floods.
