The regular checkout period for a book is three weeks. If another library user has requested that book--which often happens with textbooks--the item cannot be renewed. If no one else has requested the book, it may be renewed two times. This makes the possible maximum checkout period for a book nine weeks.
If you have any additional questions about borrowing materials, please give a call to the Circulation Desk at 215-646-7300 ext. 21474.