Well, i am in New York City at the moment(s), and its too hot outside to actually do a walking tour- but i think this is the book to bring with you when you are in NYC. Bill Morgan is the official historian of everything that's BEAT. And here he takes you to neighborhood-to-neighborhood to all the Beat haunts and lofts/apartments. As well as the bars, the jazz nightclubs, and various parks where one score Heroin or grass. In other words this is pretty essential travel guide to one of the great cities on this planet.
The shocking thing is also how much has changed since this book was written (in the 1990's). Buildings don't exist, so what you get is sort of a ghost tour - and Manhattan in many ways is a ghost - but with only respect to memory and history. Its a beautiful form of memory - not my own, but from history. And the Beats, without a doubt, made NYC a strong presence. Even if you don't plan to go to New York City, this book is pretty much an essential document of Beat life. In other words, I love it!