Books about books; one of my favorite categories of fiction. I don’t know what it is, but I cannot resist a story about books or bookstores, particularly when there is a secret hidden in the shelves or between the covers. Mr. Penumbra’s 24-Hour Bookstore is a fun, modern romp through a mysterious bookstore as seen through the eyes of a young man who, while a little directionless in general, finds his place in the unusual realm of the unique store. With everything from tech solutions to obstacles that arise (via Google no less) to a secret society and a special set of books that only certain unusual characters can access, this is a fun story set in a colorful world grounded in books. Highly recommended for anyone who can’t spend enough time lost in books or bookstores.