It is more than half a century since the publication of R. A. Bagnold s classic book The physics of blown sand and desert dunes, and it is a tribute to the quality of Bagnold s work that many of the fundamental principles which he developed - main valid today. His book continues to be essential reading for any serious s- dent of aeolian processes. However, the past two decades have seen an explosion in the scale of research dealing with aeolian transport processes, sediments, and landforms. Some of this work has been summarized in review papers and edited conference proceedings, but this book...