How do I renew my loans?

The loans may be renewed one-by-one. If you have a displayed list of loans, then it is possible to see other details of this loan using the serial number. Apart from solely informative data, there may be an option to renew this specific loan.

The option to renew will not appear if it is not possible because of the book category  (a category with a loan period for 1 semester is not renewed), or another user is already waiting for the book (i.e. he has a reservation).