The book that has been checked out by somebody can be held by another. The users can send the request by choosing WebOPAC at KKUML home page. After searching for the wanted book and getting the due date, click at 'Request' to fill in your data. If the system receives you request, it will show you when you press at 'request selected item'. The users should check again at the hold book board near the loan desk. After the book is returned to the Library, the users who requested will be informed to borrow it. If they do not come to borrow, the book will be sent to locate on its common shelf.