International Association for the Preservation of Spiritualist and Occult Periodicals


The IAPSOP preserves Spiritualist and occult periodicals using Adobe Acrobat, the universal standard for faithful rendering of digital materials.

A quick-and-dirty do-it-yourself guide to digital preservation, summarizing our methods and practices, is available for review and use.

All IAPSOP periodicals are provided on a per-issue basis, with appropriate editorial annotation of damage and legibility, in indexed and unlocked form, which permits materials from the Archive to be exported from Acrobat -- by users or staff -- as either tagged image files (TIFs) or as machine-readable text, virtually guaranteeing the survivability of the materials. Volumes and collections of volumes are also available, in ZIP format, in most cases.

Copies of the archives are held both offline and in the Amazon EC2 cloud to assure disaster resilience.

All materials are provided under the terms of a Creative Commons license that permits any legitimate non-commercial use of the Archive materials, but explicitly forbids reprint houses and self-publishers from creating for-fee versions of Archive materials, under any circumstances. For purposes of citation, the owner of the Archive works is: The International Association for the Preservation of Spiritualist and Occult Periodicals (IAPSOP).

More information on the tools, processes and workflows used to produce IAPSOP material can be found in the Workflow materials.

Offline copies of the Archive are available, for fee, from the IAPSOP. To arrange for an offline copy, make an inquiry.

Organizations that wish to provide a mirror of the Archive to users are encouraged to do so. Contact the site administrator to discuss mirroring.

Creative Commons License
IAPSOP materials are licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
IAPSOP respects user and member privacy and personal data rights.