Good lovingly written descriptions of locations which are compared, and some contain further inset pictures where relevant. The photographs are often not taken from the same vantage point or angle, which i guess was not always possible. My copy was second-hand, in good condition, and as this is a slimmer volume than you would perhaps expect, I found it good value and am glad I have not purchased brand new at full price.
A must for anyone collecting books on Manhattan who would also want to one day walk to these same places with the historical photo in memory to compare and stand at the very spot. Most of these photos would be known from elsewhere, and it is the side-by-side that makes this book valuable.