The Toshiba Library for Japanese Legal Research (東芝日本法研究図書館), located on the second floor of the Arthur W. Diamond Law Library, is the largest Japanese law library among U.S. academic institutions. Its expanding collection holds approximately 40,000 volumes, including 22,000 monographic and 600 serial titles. It provides four online legal databases of legislative materials, indexes to cases and periodical articles, full-text journals, e-books, and cases from the end of the 19th century to the present.