Double-check the book's information in our OneSearch platform. From the item record, make sure that you are looking in the correct location and the book status is Available. You can click on the Locate link in order to view a location map where you can check the item's location in the Library:
If you still cannot find the book on the bookshelf, please approach User Services counter and fill in a Missing Book form. Then, Library staff will take appropriate follow-up actions.