I'd never heard of this British series before; I just noticed it on Netflix this past weekend. It's rather quirky (as most UK comedies are) but I've enjoyed the first episode. If you're looking for something different on Netflix and haven't heard of this, and like Brit humor (who doesn't, shuh!), check it out.
First episode (maybe more) is on YouTube:
Sadly the main writer, Graham Linehan (also wrote Father Ted) departed after the first series, so the rest is shit. But yeah, the first series of Black Books is comedy gold. Bernard Black is a fantastic character. :)
^What Huw said. Bill Bailey is a very funny man.