----------------------------Original message---------------------------- Sue, those barcodes have been around since this spring, I think. When I noticed them, I asked Mr. Snyder at USGS and he said the barcodes are used for inventory. I WISH we could use them for circulation, but they don't work with our system (NOTIS). We have to cover them up with our barcode stickies to prevent confusion. Jim Coombs Map Librarian Southwest Missouri State University