Ask HN: How Do You Manage Your Office Library

We're about to start a library in the office, and I have some nice books I was thinking of adding just to get things started. The company will reimburse anyone for new books, so long as their put in the library. We may add our own movies and novels for leisure (not paid for by company).

My question is: Do you use a notebook or software program to check-in, check-out? Do you have problems with books disappearing? Any advice is appreciated.