Bar code scanner

Hello, I belong to a small genealogy society where members can check out books. We need a way to put bar codes on the books and to be able to scan the books being checked out. What do we need to do this.
Thank you!
Abel

A label printer and a scanner. Label printer should come with software to print out barcodes. Hook up the scanner to a computer, setup a spreadsheet with whatever info you want to track. Barcode the books (sofware will create it for you with whatever data you want to put in (name, author, etc...), scan it, and the scanner will put the data it scans into whatever spreadsheet field is selected.