@Jeff219 I have a lot of books and two of my guest rooms already had bookshelves and there are more books and magazines in the living room, plus load of magazines in a dresser in the dining room, so there is plenty there for them to browse but I don't think they often do.
The books are grouped by category. In one room, I have all my travel guides, books on British history and British classics like Shakespear. Another room has books on art, architecture etc, while the living room has books and magazines on interior design.
I also put tourist leaflets in the guest rooms which I think they look at more often. Unforunately, a recent guest in one of the rooms threw them all out so I have to start collecting again. I don't mind guests taking a few, but throwing them all out? I guess they didn't realise how long it takes to traipse all over London, which is huge, collecting leaflets, and assumed I did it for each guest!
Recently, I've started picking up extra copies of the free magazines that are handed out at the underground stations every week to put in the rooms, but only the ones that are useful to guests, e.g. have listings of stuff to do in London that week. I assume you would have something similar in New York, so maybe you could give that a try. The guests seem to like it.
@Lizzie's suggestion has reminded me that there is a book exchange at my local underground station. I've never thought to mention it to guests, but I might let them know about it now.