In 1977 Likoudis translated Casin's St. Thomas Aquinas, Orthodoxy, and Neo-Modernism in the Church from French to English. Likoudis also has authored several books dealing with sex education, the Eastern Orthodox church, liturgical issues following the Second Vatican Council and articles and commentary about prominent Catholics. Likoudis has lectured extensively throughout the English-speaking world on issues affecting education, family life, and the role of the laity in the Catholic Church. Likoudis has written extensively for The Wanderer (see below).