Father Anderdon began his literary apostolate by writing Catholic tales: "Bonneval, the Story of the Fronde" (1857); "Owen Evans, the Catholic Crusoe" (1862); "Afternoons with the Saints" (1863), "In the Snow, Tales of Mt. St. Bernard" (1866). All these stories, save the first, went through nine or ten editions, and were translated into German and French. Other valuable works from his pen are "Fasti Apostolici" (1882), "Evening with the Saints" (1883) and "Britain's Early Faith" (1887). His method in his writings was to understand rather than to exaggerate. Among his works, the best known are "Is Ritualism Honest?", "Controversial Papers" (1878), "Luther's Words and the Word of God" (8th thousand, 1883), "Luther at Table", "What sort of man was Luther?" (13th thousand, 1883). What do Catholics Really Believe?", "Confession to a Priest" (1881).
His newspaper work displayed a fine sense of irony in treating the polemics of the day. He was ever busy writing for the Weekly Register, the (English) Messenger of the Sacred Heart, the Xaverian, Merry England, the Month, the Irish Monthly, and other serial publications. His last works were The Old Religion of Taunton (1890); and Five Minutes' Sermons, the latter completed only in part at his death.