Dunkirk to D Day is now available from Pen & Sword by following the link. It was published on 13 May. It is also available from a number of bookshops and from Amazon and other online vendors.
My books on the history of British manufacturing: How Britain Shaped the Manufacturing World is also available from Pen & Sword. The sequel Vehicles to Vaccines is available on Amazon.War on Wheels, together with Ordnance and the book of photographs the foreword to which I wrote, D Day Before and After, is on sale in bookshops including Waterstones, Foyles and WH Smith.