Fascinating book!
It's a pity that the BLURB preview doesn't come out larger - or at least it didn't for me!
I don't know Berlin - I presume that is where most if not all the photos were taken. My first thought was that I wished there had been some captions on the left hand page. Thinking further I'm not too sure now what they would or could have added. Did you consider this idea and then discard it?
I'm struggling with my second BLURB book and find what you have done helpful and very interesting.
I think it's a good book - a lot of effort, but well worthwhile.
jesse