MOBIUS searches the collections of academic and public libraries from all over Missouri. Only request a book from MOBIUS after you have checked to see if it is in the UM LIBRARIES CATALOG. If you use the MOBIUS catalog to request a book that is in a MERLIN library, you will not be allowed to keep/check out the book for as long. If you want to keep a book as long as possible, always check MERLIN first.You can request books from MOBIUS libraries to be delivered for free to the MU library of your choice. You will receive an email when they are ready for you to pick up. Just look for the "Request" link.