Index of Library of Congress Research Guides Research guides to the Library's collections, as well as subject guides prepared by Library of Congress staff, are listed below. More online guides covering other Library of Congress collections are available via the

Northwestern University Libraries have been a U.S. Federal Depository Library since 1876. Our collection includes materials in paper, microfiche, CD-ROM, DVD formats and online formats. This guide is based on a similar guide by Kelly Smith at UCSD.