For students, your barcode number will be your student ID number located on the front of your student ID. For faculty, your barcode number will be your institution ID number located at the top of your check stub. If you are unsure or cannot find your barcode number, please come to the front desk of the library or give us a call at (708) 656-8000 ext. 2321 and we will give you this number. Thank you and we hope you enjoy borrowing items in I-Share!