Don't take it from us, let this Yelp review from 2011 tell you why you should bid on this $30 gift certificate to Red Letter Books on the historic Pearl Street in Boulder:

• "You really have to love Jon Murray's (owner) Red Letter Books. This is an old-fashioned used-book emporium with a proprietor who has a remarkable knowledge about his wares. I love simply going in and wandering the stacks. His shelves of unusual and slightly rare paperbacks are a blast. If you love books - the smell of books, the feel of them - and you are in Boulder, be sure to stop by Red Letter on Pearl Street."