He is the author and has many books, issued under the name "The Encyclopedia of the Ritual Dora of the Coptic Church Among the Eastern Churches", in four series (1): (1) Church Ritual Sources - (2) Introduction to Church Rites - (3) Rite of Mysteries and Prayers The Church - (4) The rites, fasts and feasts of the Church. Here on St-Takla.org, you will find the covers of all the books of Abouna Athanasius in the gallery section. He gave many lectures inside and outside Egypt, and the Logos channel showed him video lectures. Among the notes of Anba Bishoy, Metropolitan of Damietta, on the author's books, he mentioned in one of them that St. Athanasius did not talk about the subject of "serious sin" (2), which was explained by the bishop's opposite in one of his writings on the subject (3).