The astonishing story of the incomparable Rex Libris, Head Librarian at Middleton Public Library, and his unending struggle against the forces of ignorance and darkness. With the aid of an ancient god who lives beneath the library branch, Rex travels to the farthest reaches of the galaxy in search of overdue books. He must confront incredible foes, such as powerful alien warlords who refuse to pay their late fees. Wearing his super thick bottle glasses, and armed with an arsenal of high technology weapons, he strikes fear into recalcitrant borrowers, and can take on virtually any foe from zombies to renegade public-domain literary characters with aplomb.
And here's a review.
Heh. Yes, just try to borrow the Necronomicon without a library card. I dare you.