"Saga of the Superfortress" by Steve Birdsall is a textbook published by Sidgwick & Jackson in 1981.
Covers WW2, Korea, and British postwar aircraft .
Very detailed research book but not “dry” so to speak . Large selection of useful photographs and listings.
What I learned…4 gun top turret, fake large cannon added to rear gun ,went on to be a “ field design upgrade “ and the amazing story of a B29 shot down by a flight of Russian MiGs ! All with pictures and full stories.
Any questions please contact me on eBay.