IIS Library, located at the south end of Komaba Research Campus, collects academic journals and books on the overall field of IIS activities. The library material is open for the University members and visitors. The library houses 1,600 titles of foreign journals, 1,000 titles of Japanese journals, 95,000 foreign books, and 59,000 Japanese books. Since 1986, we have maintained the online catalog, and have provided the library information via the University of Tokyo Library OPAC or CiNii Books provided by National Institute of Informatics. We have also provided document delivery service to IIS members through domestic and foreign interlibrary cooperation.