The Geek’s Guide to Dating
I am just going to assume that librarians fall into the definition of “geek”. This little book uses a gaming metaphor for the entire book while dispensing some relationship advice. It is cute and more about the metaphor than any meaningful special advice for those with a geeky outlook on life.
This is also sitting in the 800s rather than 646.77 or any other Dewey. So even though it is dating/relationships, it is really a humor book. It went out a bunch of times when it was new, but has been languishing in the collection for the last couple of years. I also want to point out that as technology has evolved, I would imagine so has the technology based humor.