[1] Alleau was the director of the Bibliotheca hermetica collection at the French publishing house Éditions Denoël.
Alleau contributed to the Planète magazine of Louis Pauwels and Jacques Bergier (authors of The Morning of the Magicians).
In his later life he wrote online articles for Symbole associated with Frédérick Tristan and which focused heavily on the works of René Guénon.
René Alleau's article in the first issue of Surréalisme Même in 1961 was the occasion of the rapprochement between Breton and the young Frédérick Tristan, who was to remain a faithful friend until his death.
As a member of the Thebah lodge in Paris, he was associated with the Guénonian-Traditionalist School wing of the Loge, rather than the Anglo-Saxon element.