D: World Politics
E: Spies - United States - Biography
G: Geographic Information Systems
JK: Central Intelligence Agency
JK: Intelligence Service
JX: Nuclear Disarmament
JZ: Nuclear Nonproliferation
UA: United States - Military Policy
UB: Military Intelligence
We arrange every book on the shelves in the library by subject. Like other academic libraries, we use the Library of Congress Classification System to assign call numbers to our materials so that materials on similar topics are next to each other on the shelves and patrons and staff can easily find what they need.
You need to know a book's call number in order to get it off the shelf in the library. CSU, Los Angeles has created a guide that provides a useful introduction to the organizational scheme:
Encyclopedias, dictionaries and other reference materials also follow the Library of Congress Classification System and can be found in the reference section on the Main Level of the Mercyhurst Libraries.
Not sure where to go? Ask at the circulation desk or check out our map of the Hammermill library:
You can place a hold on an item that is currently checked out; when it is returned, you will be notified by email.
You can also place a hold on an that's located at the North East Campus' Ridge library and it will be sent to the Hammermill Library for you and vice versa.
You can also place a hold from home on an item on Hammermill or Ridge Library's shelf so it doesn't get checked out by anyone else before you get to the library.
To place a hold, find the book in the catalog and click on "Request." You will be prompted to log in with your name and password and from there you can request that the book be sent to whichever campus library you need.
Find a journal we don't have at Mercyhurst? You can request articles and other materials through our Interlibrary Loan service provided by the Mercyhurst Libraries.
Our ILL service allows you to request articles, books, chapters from books, and conference proceedings to request from libraries all over the country. Choose the material you'd like to request, log in using your Name and Mercyhurst ID Number, then fill out the form as completly as possible and click 'Submit This Request'.
*Please check the library holdings before requesting materials through this service!