The Karen E. Herrick papers contains materials from her presidency and membership in the Academy for Spiritual and Consciousness Studies, Inc. (ASCSI), research files related to near-death experiences, research in conjunction with Raymond Moody, correspondence with Kenneth Ring, and her dissertation.

Included in the collection is postal and email correspondence with collaborators, teachers, and colleagues; email correspondence between board members at the time of her presidency of ASCSI; official correspondence from ASCSI; conference materials, including Herrick's hand-written and typed notes of meetings, phone calls, reading materials, and conference presentations; research materials; Herrick's papers and presentations; photos; a hardback copy of Herrick's dissertation, Naming Spiritual Experiences; as well as other materials collected between the years 1987-2021, with the bulk being comprised of 2011-2015 ASCSI-related materials.

Additions include Carl Jung's Near-Death Experience presentation, materials associated with publication of Herrick's books, and her essay and application materials for the Bigelow Institute for Consciousness Studies (BICS) essay contest.

Some materials predating November 2012 may have been lost, as Herrick noted in a president's message to ASCSI that the flooding from Hurricane Sandy had destroyed many of her possessions.