1、Reservation for checked-out books
Even when all duplications of the book you need have been lent out, you can also reserve it online. You will be notified by e-mail and SMS when your transferred item is returned to the library. It will be available for you to pick up at the Loan Desk for 4 days. If the book was reserved by more than one users, it will be lent by orders of time. If the book you have borrowed has been reserved by another user, renewals will not be approved.
2、Reservation for books in shelves(including Closed Stacks, Changping Depository Library, the Second Depository Library).
If the book you need is located in the “Closed Stacks”, you can submit a “reservation on-shelf” request. Librarians will check the request list twice on a daily basis, and retrieve the book you need.
（2）Changping Depository Library
For books located on “Changping Depository Library”, users can reserve it online or by writing a specified call list at the library General Reference Desk in Sunny Lobby. Librarians will retrieve the book from Changping Depository Library to the central library on every Monday & Tuesday.
（3）Second Depository Library
Most collections of the Second Depository Library are Japanese and Russian books. If the book you need is located in “The Second Depository Library”, you can send a reservation request online or by writing a specified call list at library General Reference Desk in Sunny Lobby. On weekdays, librarians will check the requests list once a day, and retrieve the items you need.
All reserved books will be available for you to pick up in the central library Loan Desk for 4 days. The reservation method for Hanvon e-readers is the same as the above. It will be held for 3 workdays for users.