The comment Hervé SK Guégano is wrong. Introvigne does not take the defense of the modern philosophical Satanism introduced by Anton Lavey in the 60s, even if it is a clear distinction between this and the traditional speudo Satanism Satanism which the devil is not an allegory but a real entity. Introvigne shows that this phiosophie glorifies fierce individualism is an avatar against Catholic with sometimes dubious dealings with neo-Nazism. Massimo Introvigne survey reads easily but is a more serious study in French language on this subject, perhaps the most serious?