Some nice books there guys! I normally find that the 'general' books are all the same 'old stuff', but those dealing with specific aircraft are quite good. The quality and info in some books has certainly improved in recent years, particularly in those that Wojtek posted. I've seen reviews in modelling mags about the Kagero books, and they sound fantastic!
Like wayne, I normally have a browse at the modelling mags in the newsagents, and buy one if there is something specific I might find useful for future reference; same with aviation mags. Problem is, I'm running out of room for all the piles of mags, and had to dispose of a lot not long ago! Didn't know Osprey did a 'Mossie' book, think I'll get that, as my original 'bible', the Patrick Stephens book from the early 80's, is in Denmark, on loan!