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.

LLMC is proud to announce its new Open Access initiative. In addition to the subscription services LLMC offers to Members of our consortium, we are proud to provide unrestricted access to select titles. The LLMC Open Access Collection has been made available through partnerships and grants designed to give the world access to specific content.

DOAB is a community-driven discovery service that indexes and provides access to scholarly, peer-reviewed open access books and helps users to find trusted open access book publishers. All DOAB services are free of charge and all data is freely available.