Menu Amoris LaetitiaThis Encyclical was directed to Bishops, Priests and Deacons consecrated persons Christian married couples and all the lay faithful on love in the family and talks about the Holy Father. |
| Superiore Anno Encyclical on the recitation of the rosary of Pope Leo XIII, promulgated on August 20, 1884 |
| Dall'alto Dell'apostolico Seggio Encyclical on freemasonry in Italy, of Pope Leo XIII promulgated on October 15, 1890. |
| Ad Extremas It is an encyclical of Pope Leo XIII .Which dates from 24 June 1893, and it talks about seminars for local priests in mission lands. |
| Rerum Orientalium This enyclical is dedicated to the promotion of studies on the Eastern Church with a view to create the tools for a rapprochement between the two separate Churches . |
| Adiutricem It is an encyclical of Pope Leo XIII. It was promulgated on September 5, 1895 and it is classified in the series of rosary encyclicals. He represented the link between the Mother of God, the mission and the Rosary. |
| Summi Pontificatus It was published on 20 October 1939. It critiques major errors at the time, such as ideologies of racism, cultural superiority and the totalitarian state. |
 | Ad Salutem Talks about San Augustine, Bishop of Hipona and Doctor of the Church , on the occasion of the fifteenth anniversary of his death, addressed to all the bishops of the Catholic world |
| Graves De Communi Re Encyclical of Pope leo XIII on Christian Democracy January 18, 1901 |
| Catholicae Ecclesiae Encyclical on Slavery in the Missions of Pope Leo XIII promulgated on November 20, 1890, to the Catholic Missionaries in Africa. |
| Il Fermo Proposito It was addressed to the Bishops of Italy for the establishment and development of Catholic Action Association for the Apostolate of the Catholic laity in the world. |
| Spesse Volte This Encyclical talks about the suppressions of the Catholic Institutions, it was promulgated on August 5, 1898 |
| Sacra Virginitas This Encyclical was promulgated on March 25 1954.It talks mainly about how people dedicate themselves to the service of God in the state of celibacy. |
| Aeterni Patris Pope Leo XIII published it on August 4, 1879. In it, the Pope asserts that the Thomistic doctrine must be the basis of all philosophy that has as Christian. The Pope gave the full support of the Catholic Church to Neoscholasticism. |
| Mortalium Animos Promulgated in 1928 on the subject of religious unity, condemning certain presumptions of the earlyecumenical movement and confirming that the unique Church founded by Jesus Christ is the Catholic Church. |
| Summi Maeroris It is one of several peace encyclicals of Pope Pius XII focusing in particular on the dangers to peace during the Holy Year. It was given at Rome, at St. Peter's on July 19, 1950, the twelfth day of his Pontificate. |
