RFID technology allows libraries to track items using radio frequency tags and readers instead of barcodes. The Salem-South Lyon District Library retrofitted its entire collection of 65,000 items with RFID tags over 11 months. Benefits of RFID include faster check-in/out, self-checkout, inventory management, and collection analysis. The library found over 100 missing items during its first inventory with an RFID wand and now has fewer than 700 missing items listed.