BEFORE the War much interest was taken in Great Britain in the German Autobahnen. Their design and construction were well described then in both the technical and popular press. The system is the only modern road network planned on a national scale and is worthy of most careful study in order that practice in Britain and elsewhere may profit as much as possible from German experience. The recent B.I.O.S. Overall Report*, entitled "German Motor Roads, 1946", is therefore particularly valuable in that it gives comprehensive information on the present state of these roads. The report, which contains thirty-nine excellent plates, is clearly and succinctly written and can be strongly recommended to the general reader.