New Building and Library Hours

We are pleased to welcome back visitors to the Olcott campus!
Click here to view our current COVID safety protocol.

Please contact us at for more information.  


The Henry S. Olcott Memorial Library is a unique library bringing together the religious, philosophical, and spiritual traditions of the East and West, emphasizing the Ancient Wisdom tradition—Theosophy.

Founded in 1926 and named after Colonel Henry Steel Olcott, one of the founders of the Theosophical Society, the library is located at the Society's national center in Wheaton, Illinois. The library’s collection of about 25,000 books, periodicals, video, and audio recordings is one of the finest in the country. Some of the many subjects included are Theosophy, Eastern philosophy and religions, comparative religion, esoteric Christianity, mysticism, mythology, psychology, parapsychology, meditation, healing, death and dying, astrology, and yoga.

*Temporary Hours*

Tuesday 1–5 p.m.
Wednesday 1–5 p.m.
Thursday 1–5 p.m.
Saturday 1–5 p.m.

Phone:  630-668-1571 x304


Street Address

1926 N Main St
IL  60187

Browse our Online Catalog

The Henry S. Olcott Memorial Library is a specialized library sharing its online catalog of resources directly to libraries throughout northern Illinois and to patrons nationwide.

Membership and Borrowing Information


Membership in the Theosophical Society in America includes library borrowing privileges (in person or by mail); however, members must register for this benefit with the library.

Nonmembers may register for library privileges for an annual fee of $30 (local borrower), $40 (mail borrower), or $150 (life member of the library).

Borrowing privileges are limited to persons residing in the United States. Click here for a User Registration Form, which can be printed out. It must be filled out, signed, and sent to the library by postal mail or fax. Instructions are included on the form.

* To ensure the timely availability of material to all our patrons, late fees are assessed on all past-due materials.
** A processing fee of $10 per title will be charged for any materials lost or damaged while in the patron’s possession. Additionally, the patron is responsible for the item’s replacement cost, plus applicable overdue fines.

Borrowing by Mail
Olcott Memorial Library Online Member Registration
Olcott Memorial Library Mail-in Member Registration
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Affiliate Disclaimer

The Theosophical Society in America is a participant in the Amazon Services LLC Associates Program. Purchases made using affiliate links may generate a small commission which helps to support the mission of The Theosophical Society, enabling us to continue to produce programming and provide resources.