Edward Bishop 
The Battle of Britain [PDF ebook] 

This book, first published in 1960, is a close examination of the twelve most decisive weeks in British history. It looks at the responsibility of pre-war politicians for the preparedness of the air defence system, the conflicting views on the conduct of the battle on both sides, the attitude of the US, and the part played by such leading figures as Dowding, Park, Beaverbrook, Kesselring and Sperle.