Battle of Britain books. Recommendations?

[whoarmongar]

Lonely Warrior. Jean Offenberg

I mention this book as it was the first book on the BoB I ever read, my well thumbed copy has long ago disapeared, however it lives long in my memory. Since then I have read many books on the subject but non have resonated with me as much as this one.
Its also good to remember how many pilots of other nationalities served within the RAF in those fateful days.