The Church has been always preoccupied by the communicative phenomenon. The changes made by the mass-media in the 20th century have determined the Council Fathers to elaborate the Decree about the mass-media Inter mirifica. In this interview there are underlined the problems that lead to the elaboration of this document, the way in which it is structured in the new concept of the Church regarding the mass-media. The technological development that took place in the social communication area is considered by the Church as a manifestation of the man’s participation to the creative power of God. The importance of this document is demonstrated by the way in which it was applied by Pope Paul the VI and by its successor Pope John Paul the II.