From times immemorial, the desire to keep contact with God or another transcendental being or power has always been living in mankind. In all eras and all cultures people found their own mediums and methods through which they could contact a being or power which seemed unattainable for them. In the early Christian catacombs, people wrote on the walls, in the Middle Ages they sent or placed letters next to the saints' tombs, nowadays, the practice of using books for this purpose in churches seems to spread, moreover, the world of computers and the Internet becomes the means of communication. Writing gives the messages and their writers eternity. The church books, or as I call them the visitors' books examined in my article serve the same purpose. What inclines a person to confess his or her innermost worries and joys in public? Can we explain why such books are displayed in more and more places? In most cases, the books appear spontaneously and the motivation behind is the desire to write about everyday concerns and problems in a sacred place. The spontaneous idea may encourage others - either involuntarily or consciously - to adapt the model. The clergy's and the church's guidance has also played an important role in spreading this spontaneous practice and making it more conscious. Another important question in the research on social background in connection with the books is who writes these requests and acknowledgements. As the messages are usually anonymous because of their intimacy, it is very difficult to answer this question. Generally, the majority is a woman and having lower education, and the given social and cultural environment influences the social composition of the writers as well.