Books and other materials donated by the late Dr. Itsuzo Shigematsu to the RERF library are labeled the "Dr. Itsuzo Shigematsu Memorial Collection," and have been arranged on the open access bookshelves in the library, bearing on their title pages a seal indicating the "Shigematsu Collection." These books and other materials can be searched on the OPAC by entering the key terms “Shigematsu Collection."