I was under the impression that B&N was the only chain of book store that remained in the country.
No, not the only one, though maybe the only nationwide one. There's also Books-A-Million
, which has a couple of hundred stores in the south, northeast, and midwest US and is the second-largest surviving bookstore chain. In my part of the country, there's a local chain called Joseph-Beth Booksellers that has four big stores in Ohio and Kentucky -- although it used to have more stores and has weathered a bankruptcy filing in recent years. I'm sure there are others holding on as well.