The IAPSOP is a US-based non-profit organization focused on the digital preservation of Spiritualist and occult periodicals published between the Congress of Vienna and the start of the Second World War.

Our all-volunteer staff digitizes, indexes and makes available free-of-charge these periodicals, in our Archive, for use by students and researchers. Each periodical is curated by a staff member, accessible to students and researchers when they need assistance, or have questions.

We accept contributions of material and labor to further this work.

To be notified when material is added to the IAPSOP archive, add yourself to the IAPSOP mailing list.

Also:

Six years of The Religio-Philosophical Journal and the entire run of The Rosicrucian Brotherhood (1907-9).

The Spiritual Herald, the first London-based Spiritualist magazine.

In related project areas, John Buescher's spirithistory.com has been incorporated into IAPSOP, and is (permanently) available at http://spirithistory.iapsop.com/, and IAPSOP's Standard Spiritualist and Occult Corpus (SSOC) -- at present, more than 2200 machine-readable electronic texts, in English, covering Spiritualism, occultism and allied parasciences, from the 1790s to the 1940s -- is available in beta form for testing and use.