There is a very large number of works by "Ephrem" extant in Greek. In the literature this material is often referred to as "Greek Ephrem", or "Ephraem Graecus" (as opposed to the real Ephrem the Syrian), as if it was by a single author. This is not the case, but the term is used for convenience. Some texts are in fact Greek translations of genuine works by Ephrem. Most are not. The best known of these writings is the "Prayer of Saint Ephrem", which is recited at every service during Great Lent and other fasting periods in Eastern Christianity.