 Alvarus's writings are consequently as much focused on convincing these moderates of his point of view – the sanctity of the martyrs – as they are a direct attack on Islam.Jessica A. Coope observes in her book "the Martyrs of Córdoba" that Alvarus's writing, especially about Islam and Muhammed, “borders on hysterical” but its execution was intelligent and calculated.In a short section of text Alvarus goes on to write