He has a doctorate degree in History at the
Jean Moulin University Lyon 3 (1984).[1] From 1991 to 1998, he worked as an analyst on international affairs and policy for the Swiss federal government.[2][3]: 197 In 1999, he founded a firm of strategic researches named JFM Recherches et Analyses, and taught at the University of Freiburg from 1999 to 2007.[2] In 2007, Mayer founded the Institute Religioscope and became the director.[4]
Mayer's book Les mythes du Temple Solaire, about the Order of the Solar Temple, was positively reviewed by sociologist
Françoise Champion [
fr], who called it a "valuable work" and praised Mayer's understanding of the people involved. In the book, Mayer regularly quoted the OTS's own writings, arguing that ignoring what he views as inseperable from the decline of the OTS would lessen understanding.[9] Mayer personally participated in the investigation of the OTS, being consulted by the Swiss police,[9][3]: 197, 203 after he was mailed the group's suicide note by its leaders.[10]
Mayer had studied the organization prior, and published the only academic writing on the OTS before the violence occurred, Templars for the Age of Aquarius: The Archedia Clubs (1984–1991) and the International Chivalric Order of the Solar Tradition,[11]: 3–4 published in the French newsletter Mouvements Religieux in January 1993.[11]: 7 Mayer had personally attended OTS meanings as far back as 1987.[3]: 203 Mayer's later article on the OTS, Our Terrestrial Journey is Coming to an End, was analyzed by Jean E. Rosenfeld writing for
Nova Religio, who praised Mayer's scholarship as "admirably restrained",[3]: 197 and concurred with Mayer on applying Colin Campbell's "cultic mileau" concept to the OTS.[3]: 201
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abChampion, Françoise (1997).
"Les Mythes du Temple Solaire" [The Myths of the Solar Temple]. Archives de sciences sociales des religions (in French). 43 (98): 91–92. Retrieved 8 October 2023 – via
Persée.