A few years ago I saw a pre-WWII book on radio electronics in a thrift store, too bad I didn't buy it. I was amazed how approachable it was to general public and how good it was written. It seems to me that the quality of technical writing to the layman isn't as it used to be, I have never seen as good explanations for basic concepts in any modern books.
> I have never seen as good explanations for basic concepts in any modern books.
Bill Bryson has a really approachable prose style on many subjects. I find his books a pleasure to read even on subjects that I have no particular interest in.