Here’s a link to a video of a presentation by Henrik Bogdan on The Esotericism of the Esoteric School of Quatuor Coronati Lodge.
“The Speaker: Henrik Bogdan is Professor in Religious Studies at the University of Gothenburg. His main areas of research are alternative forms of religion, including Western esotericism, New Religious Movements, and Secret/Initiatory Societies. Professor Bogdan is a member of the Department Council at the Department of Literature, History of Ideas, and Religion (LIR), as well as a postgraduate education coordinator for Religious Studies at LIR. He is the author of Western Esotericism and Rituals of Initiation (2007), published in a French translation, Ésoterism Occidental et Rituels d’Initiation (Arché, 2010); and has edited several publications, including Brother Curwen: Brother Crowley: A Correspondence (Teitan Press, 2010), Aleister Crowley and Western Esotericism (Oxford University Press, 2012); Occultism in a Global Perspective (Acumen / Routledge 2013); Sexuality and New Religious Movements (Palgrave, 2014); Handbook of Freemasonry (Brill, 2014), and Western Esotericism in Scandinavia (Brill, 2016). Professor Bogdan is also editor of the book series ‘Oxford Studies in Western Esotericism’ (Oxford University Press), as well as co-editor of the book series ‘Palgrave Studies in New Religions and Alternative Spiritualities’ (Palgrave Macmillan). He has been the Secretary of the European Society for the Study of Western Esotericism (ESSWE) since 2016.”