Plus a special guest map from Michael Kordas, With Wings Like Eagles, showing the air defenses of England and Wales, August 1940.
Neither Dowding nor anyone else could have guessed that the 18th would produce an air battle so intense and prolonged that at least one book has been written about this day alone (The Battle of Britain: The Hardest Day, by Alfred Price, Macdonalds and Janes Publishers, 1979).