Books on aviation in the 20´s and 30´s

I’m English, actually, old boy, but have lived in Sweden for most of the last 30 years, so I have just about picked up the language (enough to make a living as a professional technical translator, at least!)
One book that you might find useful is “Svensk flyghistoria under 1900-talet” that we members of the Swedish Aviation History Association received “free” last year. I could post you my copy to borrow, if you contact me through private mail.
I may have a few other Swedish books in the same vein that I could add to the package if you absolutely guarantee to return them!!!
If you have detailed questions about particular aircraft, you should contact the SFF in Stockholm, which has an excellent reference library (but hardly any researchers!).

Thanks Papa Lima,

I notice you´re Swedish. You wouldn´t have any books on Swedish pre-WWII aircraft / aircraft production to recommend btw ? They don´t have to be in English, I have no trouble reading Swedish.

The British Fighter and The British Bomber in the Putnams series are very good, I think.