You must reserve a seat to study in the libraries. You must have a CMU ID card to enter.
Stacks are closed. All print materials can be requested:
Print Books: Contactless pickup. Find the item in the catalog, and use the request function in the catalog (be sure to be signed into the catalog. You'll see your name in the upper right hand corner if you are). You can also request a scan of part of or a chapter of a book. Use the scan request in the catalog. Videos: How to Request a Book and How to Request Digital Scans of Print Items.
Print journals: Find the journal issue in the catalog, and use scan request in catalog to get an article (be sure to be signed into the catalog. You'll see your name in the upper right hand corner if you are). Video: How to Request Digital Scans of Print Items.
Most academic libraries are restricted to use by their faculty, students, staff. Carnegie Public Library is closed to the public, with curbside and virtual services still available.
Interlibrary loan and EZ Borrow (ways of getting materials we don't have from other libraries) may be affected by closure, staffing issues, etc. at the holding library.
Being asked for a password by these databases? See Connecting from Off Campus to get access!
Just the facts, plus a bit of interpretation. Great way to get started or to understand a historical event or issue. You have access to many online reference books via Credo Reference, Oxford Reference, Sage Reference Online and the CQ Press Electronic Library, but don't forget excellent resouces exist in paper, too.