UNC-Chapel Hill may be moving materials to a high-density shelving 
facility that requires a barcode on the outside of every book cover. To 
reduce the amount of re-barcoding in the future, we also have a proposal 
on the table for putting barcodes on the exterior of new books going into 
open stacks. If your library has exterior barcodes, please comment on any 
associated problems you  have observed. If your library has recently 
considered this practice, I would also be interested in some of the 
arguments, pro and con, and what you decided to do.
Thanks,
Andy
--
Andrew Hart
Preservation Librarian
CB#3910, Davis Library
University of North Carolina at Chapel Hill
Chapel Hill, NC 27514-8890
Tel. 919-962-8047
Fax 919-962-4450
Email: ashart@xxxxxxxxxxxxx