Biographical works include E.E.Y. Hales, Pope John and His Revolution (1965); A. Lazzarini, Giovanni XXIII (1958; Pope John XXIII, 1959); Meriol Trevor, Pope John (1967); and Paul Johnson, Pope John XXIII (1974), a good popular biography. Peter Hebblethewaite, Pope John XXIII: Shepherd of the Modern World (1985) provides the most complete biography of Pope John. The Pontiff’s diary, which he began writing as a seminarian and finished when he was pope, was published as The Journal of a Soul (1965; originally published in Italian, 4th ed., 1965). His encyclicals and major public addresses may be found in The Encyclicals and Other Messages of John XXIII (1964). Pope John’s papacy and its impact on the church are discussed in most of the books about the second Vatican Council and developments in contemporary Roman Catholicism. Among these in English are Xavier Rynne, Letters from Vatican City (1963); Gary MacEóin, What Happened at Rome? The Council and Its Implications for the Modern World (1966); and in translation, Hans Küng, The Council, Reform and Reunion (1961; originally published in German, 1960).