I was born and raised in NY and I love it so much. There's so much history everywhere. I can walk down a street in some parts and just "see" how it was to walk down that same street 100 years ago.
I first got the kindle version, but did not find it to be very useful. You need to flip back and forth sometimes in the book because there are maps and such. So I got the paperback and I love it. Very informative book on NYC history and the famous people who helped built this city.
Update: After reading some of the reviews it seems some tourists have bought this book as a means to sightseeing. If you plan on doing that I would highly recommend you get another book specifically for that purpose. This book is not a travel guide, but more of a history book and the maps and such are only there to supplement the telling of the history of this great city. However this can make a great supplement to a travel guide if you are a tourist. I am a NY native, but I learned a lot from this book. For example, I learned that the reason "Wall Street" is named such is because back in the late 1600's there was a literally a big wall there! Built to protect New Yorkers from British colonists and it was built by a collaboration of NY volunteers, residents and black african slaves. Perhaps this rare culture of black slaves working side by side with free men was the reason why in the 1700's "The New York Manumission Society" was founded... which was a group of white males who thought slavery was ungodly and wrong and they fought to abolish it. This society also founded a school specifically meant to educate the children of black slaves so that they could grow up to compete in the market place as free adults. All this and more happened right here in NY! I walked these streets for years not understanding their meaning and now I do.