From the publisher’s website: The authors´ preoccupation with Indridi Indridason spans several decades. Erlendur Haraldsson first read about him in the 1960s, perhaps earlier. He joined the Psychology department at the University of Iceland in 1973 and, during his course on paranormal phenomena, he would regularly discuss Indridason, Iceland’s most prolific physical medium. Loftur Reimar Gissurarson, one of Haraldsson’s students, soon became interested and wrote his BA thesis on Indridason (Gissurarson, 1984).
Based on their research, they co-authored a monograph entitled The Icelandic Physical Medium Indridi Indridason, which was published in the Proceedings of the Society for Psychical Research (Gissurarson and Haraldsson, 1989). The monograph was subsequently reprinted partially and in full in Renaitre 2000 in France, Luce e Ombra in Italy, and Parapsykologiske Notiser in Norway.
Loftur continued the work and co-authored with William Swatos, the book Icelandic Spiritualism: Mediumship and Modernity in Iceland (Swatos and Gissurarson, 1997), much of it dealing with Indridi and the history of Mediums and Spiritualism in Iceland.