Normally, you may renew overdue items. The exceptions are:
a) You have already reached your renewal limit
b) Another patron is waiting to use the item (i.e. there are "holds" on the item)
c) Your account has been blocked because of overdue fines. (Once the fines are paid you may renew.)
Please contact the circulation desk of any library or call 416-978-8450 for more information.