I love the idea of then and now photos in NYC. I've picked up a few books of this kind over the years and it's amazing to see how much the city has changed and what has remained.
This book is nice on the surface but has some big flaws. For example, the author did not match up the "now" photos with the classic shots, so it's hard to compare the time periods. Additionally, in many cases she doesn't even provide the same view; you are simply looking at 2 completely different areas. This really defeats the purpose of doing a "then and now" book.
I also thought her notes were really trite. Rather than highlighting particular structures that remained or what was replaced in a given set of photos, we get very superficial comments like "this area is now home to many swanky stores". This type of caption is utterly useless, and unfortunately, prevalent throughout the book.
Finally, I'm not sure if it's on purpose but it appears that several of the photos were doctored with a blurring technique to give the appearance of streaks of light in traffic. Not sure if this was intentional, but it looked a bit amateurish nonetheless.
Overall, I was disappointed with the book. It really feels like a book someone did as a hobby rather than a well researched project.