[Koi]

I highly recommend the Very hard to find but excellemt day by day account in" The Narrow Margin" by Derrek Wood and Derrek Dempster with the Foreword by Air Chief Marshal Lord Dowding. My well worn and ratty copy was published in 1969 at about the time BoB movie was released. It has a Lot of b&w war era Photos and Tech material as well. published by Arrow Book. I believe that it may have been reissued under a different title so you may need to look for it by the authors