Pope Pius XI
Feb. 6, 1922 - Feb. 10, 1939

• Acerba Animi (On the Persecution of the Church in Mexico) September 29, 1932
  Ereader files: [MOBI] [EPUB]
   
• Ad Catholici Sacerdotii (On the Catholic Priesthood) December 20, 1935
  Ereader files: [MOBI] [EPUB]
   
• Ad Salutem (On St. Augustine) April 30, 1930
  Ereader files: [MOBI] [EPUB]
   
• Apostolicorum in Missionibus (Decree naming St. Therese co-patron along with St. Francis Xavier of all foreign missions) [Latin], December 14, 1927
  Ereader files: [MOBI] [EPUB]
   
• Caritate Christi Compulsi (On the Sacred Heart) May 3, 1932
  Ereader files: [MOBI] [EPUB]
   
• Casti Connubii (On Christian Marriage) December 31, 1930
  Ereader files: [MOBI] [EPUB]
   
• Dilectissima Nobis (On the Persecution of the Church in Spain) June 3, 1933
  Ereader files: [MOBI] [EPUB]
   
• Divini Illius Magistri (On Christian Education) December 21, 1929
  Ereader files: [MOBI] [EPUB]
   
• Divini Redemptoris (On Atheistic Communism) March 19, 1937
  Ereader files: [MOBI] [EPUB]
   
• Ecclesiam Dei (On St. Jehosophat) November 12, 1923
  Ereader files: [MOBI] [EPUB]
   
• Ingravescentibus Malis (On the Rosary) September 29, 1937
  Ereader files: [MOBI] [EPUB]
   
• Iniquis Afflictisque (On the Persecution of the Church in Mexico) November 18, 1926
  Ereader files: [MOBI] [EPUB]
   
• Lux Veritatis (On the Council of Ephesus) December 25, 1931
  Ereader files: [MOBI] [EPUB]
   
• Maximam Gravissimamque (On French Diocesan Association) January 18, 1924
  Ereader files: [MOBI] [EPUB]
   
• Mens Nostra (Promotion of the Spiritual Exercises) December 20, 1929
  Ereader files: [MOBI] [EPUB]
   
• Miserentissimus Redemptor (Reparation to the Sacred Heart) May 8, 1928
  Ereader files: [MOBI] [EPUB]
   
• Mit Brennender Sorge (On the Church and the German Reich) March 14, 1937
  Ereader files: [MOBI] [EPUB]
  
   

• Mortalium Animos (On Religious Unity) January 6, 1928
  Ereader files: [MOBI] [EPUB]
   
• Non Abbiamo Bisogno (Catholic Action in Italy) June 29, 1931
  Ereader files: [MOBI] [EPUB]
   
• Nos Es Muy Conocida (On the Religious Situation in Mexico) March 28, 1937
  Ereader files: [MOBI] [EPUB]
   
• Nova Impendet (On the Economic Crisis) October 2, 1931
  Ereader files: [MOBI] [EPUB]
   
• Quadragesimo Anno (Reconstruction of the Social Order) May 15, 1931
  Ereader files: [MOBI] [EPUB]
   
• Quas Primas (Introducing the Feast of Christ the King) December 11, 1925
  Ereader files: [MOBI] [EPUB]
   
• Quinquagesimo Ante (On his Sacred Jubilee) December 23, 1929
  Ereader files: [MOBI] [EPUB]
   
• Rappresentanti In Terra (On Christian Education) December 31, 1929
  Ereader files: [MOBI] [EPUB]
   
• Rerum condicio: October 4, 1927 A.D. (Apostolic Constitution reforming the Rule of the Third Order Regular) English / Latin
  Ereader files: English [MOBI] [EPUB] Latin [MOBI] [EPUB]
   
• Rerum Ecclesiae (On Catholic Missions) February 8, 1926
  Ereader files: [MOBI] [EPUB]
   
• Rerum Omnium Perturbationem (St. Francis De Salles) January 26, 1923
  Ereader files: [MOBI] [EPUB]
   
• Rerum Orientalium (On the Promotion of Oriental Studies) September 8, 1928
  Ereader files: [MOBI] [EPUB]
   
• Rite Expiatis (On St. Francis of Assisi) April 13, 1926
  Ereader files: [MOBI] [EPUB]
   
• Studiorum Ducem (On St. Thomas Aquinas) June 29, 1923
  Ereader files: [MOBI] [EPUB]
   
• Ubi Arcano Dei Consilio (On the Peace of Christ in HIs Kingdom) December 23, 1922
  Ereader files: [MOBI] [EPUB]
   
• Vehementer exultamus hodie: (Bull of Canonization of Saint Thérèse of the Child Jesus and the Holy Face) May 17, 1925
  Ereader files: [MOBI] [EPUB]
   
• Vigilanti Cura (On Motion Pictures) June 29, 1936
  Ereader files: [MOBI] [EPUB]