Something different, but not terribly gratifying, ... I thought the premise had plenty of potential, but, for this reader, it went largely unfulfilled.
(Admittedly, the book caught my eye ... in the library, and I decided to give it a chance because ... no deep dark secret here ... but I remember (once, just once) being locked in the University library after closing hours. In a rare moment of concentrated/absorbed study, I missed the closing announcements, and, well, when I finally got up from my basement library carrel, my mistake became obvious.) Alas, that experience in no way made this book more entertaining....
Published as a very short (slender? slight?) book, it's much more of a novella, if not a bagatelle. And, be forewarned, it's a straight, stream-of-conscious, rambling monologue, structured as a single expulsion (or data dump), even to the point of being written - entirely - as a single paragraph.
If you were hoping for the something along the lines of 84 Charing Cross or The Storied Life of AJ Fikrey, keep looking, because this isn't that book. And I know, I know, this is about a library, not a bookstore, but (I'm guessing) you get the point....
Final musing: lest this ambivalent review suggest otherwise, I'm not only open, but sympathetic, to the career librarian's lament. I grew up with/in rural/community/military base libraries (and bookmobiles!, you either remember them or you don't), I've prowled the halls (and, way back when, when it was still permitted, the stacks) of the Library of Congress, I've always felt comfortable in libraries, and I remain a somewhat regular public library patron. Nonetheless, the book didn't really speak to me....