This stained-glass window in St Peter’s, Oare, in Kent, is a memorial to Royal Engineer Allan Beckett, who designed floating roadways and solved anchoring problems for the Mulberry Harbours used to address the logistical challenges of the Normandy landings in June 1944. The photo is from D-Day UK: 100 locations in Britain by Simon Forty, which describes the preparation, which took three years, for the great air and sea operation of 75 years ago (Historic England, £30 (£27); 978-1-84802-540-0)