A fascinating insight,
This review is from: Cyclepedia: A Tour of Iconic Bicycle Designs (Hardcover)
This is a nice book, it won't teach you how to design a bike or what the perfect bike to own is, but it's a fascinating look at some normal and unusual bikes through time.
If you are interested in how things have evolved and having your idea of what's new shaken up (when do you think electronic shifting was first used in the Tour De France, for instance?), then this is a wonderful choice.
I received mine as a gift and was delighted by it, when I put it down, I was always keen to pick it back up to look at the next curious or interesting specimen.