Before adding reserve materials you will need at least one course to add them to. To add materials visit the Course Reserves module.
Click on the title of the course you would like to add materials to.
At the top of the course description click the 'Add reserves' button to add titles to this reserve list. You will be asked to enter the barcode for the reserve item.
After you are done scanning the barcodes to add to the course you can see them on the course page