Robin’s Book Store, a favorite haunt of the Philadelphia’s literati, announced last week that this will be its last holiday season. It will be closing up shop at the end of January. The city’s oldest independent book seller, Robin’s has long hosted poetry readings and autograph signings at 108 S. 13th Street. “Operating a book store was always a better hobby than a way to make a living, but now it’s impossible” writes Larry Robin in a news release. “Blame it on the Economy. Blame it on the Chain Stores. Blame it on the Internet.