headquarters estate came to be known as "Olcott", in honor of co-founder Colonel Henry Steel Olcott. For several decades, postal mail was delivered simply to "Olcott, Wheaton, Illinois." The property now comprises almost . The Quest Book Shop and Theosophical Publishing House are housed in the Mills Building, named after president Joy Mills. The scenic grounds are open to the public, and feature a pond, groves, gardens, and a labyrinth. Video tours of the campus are available . National library and archives Books and periodicals have always been extremely important to Theosophists as tools for study. In 1922, L. W. Rogers established the national library, and when the headquarters building was constructed in Wheaton a two-story library was incorporated into the design. The original space was expanded in 1962-63 to add offices, meeting rooms, stacks, and basement storage. The Henry S. Olcott Memorial Library houses books, periodicals, pamphlets, microfilm, videos, and audio recordings. The collection focuses on Theosophy, religion, science, philosophy, art, biography, and health. The reading room is open to the public six days each week; members of the Society and other library patrons can borrow library materials by mail or in person. The library belongs to the DuPage Library System MAGIC consortium and the American Theological Library Association, and works in close cooperation with the Emily Sellon Memorial Library at the New York Theosophical Society, and the Krotona Library in Ojai, California. Archival collections include organizational records, and also special collections of papers from Boris de Zirkoff, Mary K. Neff, Fritz and Dora Kunz, and others. Records of the American Theosophical movement before 1898 are in the archives of the Theosophical Society Pasadena. Activities and programs The national center and local groups offer lectures, study groups, workshops, and other programs to members and the general public. Subject matter is wide-ranging to facilitate the study of comparative religion, philosophy, science, health, and art. Classes have included Hatha yoga, qigong, Therapeutic touch, and many forms of meditation. Some notable speakers at national programs have included the 14th Dalai Lama, Bede Griffiths, Lama Anagarika Govinda, Ram Dass, Stephan A. Hoeller, Huston Smith, Rupert Sheldrake, Ian Stevenson, Fritjof Capra, Amit Goswami, Ravi Ravindra, and Jean Houston. The Society has also sponsored regional and national conferences focused on special topics such as education, science, and healing. Hundreds of programs have been recorded or webcast, with many available free online. The Theosophical Community at