The 50th issue of Giant Robot magazine is pretty wonderful. I especially liked the journalistic integrity of this interview with Jason Shiga about his comic book Bookhunter, which you may recall is awesome.
GR: Is there such a thing as a library detective like the character who appeared in Bookhunter?
JS: While the plot is based on an actual case, the story of Bookhunter is highly fictionalized. There are a lot of boring moments when working at the library, and I often daydream about more exciting library positions while shelving. I decided to structure my daydreams into a book, and ended up having to ask some of my older coworkers about the circulation process in the '70s. It was so much fun doing research, I almost didn't start the book.
GR: So is there really such a thing as a library book detective? I suppose it wouldn't be that much different than a video store detective.
JS: Usually when there's a serious crime, the library will contact local police. What is a video store detective?
GR: Sorry, I made that up.
As for myself, I wonder if the library book detectives had a TV show, would their theme music play during the library's hours of operation? Or would they try to keep quiet? But that's an impossible question to answer.