Students mainly rely on Interlibrary Loan to get materials not at Middlebury. However, you may want to visit other libraries in person, some of which you can directly borrow materials from.
Not only can Middlebury College students use the NExpress button in Midcat to request items from a consortium of 6 northeastern libraries, students can visit these libraries and check out items directly. These libraries are: Williams, Bates, Bowdoin, Wellesley, and Colby. See the NExpress info page for full details.
Just show your Middlebury College ID and you will qualify to get a Ilsley Library Card to check out materials directly. Ilsley has a nice collection of popular audio books and DVD's; children's literature, and other popular topics.
For all other libraries materials are only loaned through interlibrary loan.
However, many libraries allow students to use their libraries and use materials on site. Access policies to academic and research libraries vary widely. In general, it is wise to contact a library in advance to determine if you will be granted access, at what level, and with what documents. For instance,students can use the University of Vermont's libraries in person, but cannot check out materials. (Check for access exceptions during exam time).
If a letter of introduction is required by a library, request it at the Library Administration office located behind the Circulation desk of the Davis Family Library.