In Primo, readers often can not distinguish the difference of the book and the attachment of the book(ex: CD-ROM). So readers often request the barcode number of the attachment of the book first wrongly, and then find that they really want to request the book instead of the attachment of book(CD-ROM). I suggest the system can show an attachment icon picture(Ex: paper clip) besides the item of the attachment. It can help readers to distinguish the types of the items(book or CD-ROM attachment) quickly and correctly.