Brian Herzog posts at Flickr:
These are some of the signs I’ve taken down (without telling anyone) around my library since I’ve worked here. I think an uncluttered area is nicer, and that fewer good signs is better than lots of signs that no one reads.
And he has a GREAT post about Good Signs & Bad Signs in libraries. Read the post here: http://www.swissarmylibrarian.net/2008/04/24/library-signs-good-and-bad
He also links to this most infamous sign from Michael Sauers.
Are you following the SAL? It’s a keeper.