In the 19th century, a series of small popular liturgies appeared, which were intended to serve the liturgical education of the faithful. The books are simply structured and written in a way that is easy to understand. They were written in the context of social and ecclesiastical upheavals. Liturgy with its texts and rites is understood as the "face" of the faith of the Catholic Church. The project will bibliographically record these liturgies for the period from the middle to the end of the 19th century, describe their content and layout and ask what can be said about the authors and their possible interests.
It will examine the addressees of these books and the intention of the books with regard to the readers. One working hypothesis is that through these books the faithful should be sworn to an understanding of the liturgy, that the liturgies should strengthen the bond to the church and its liturgy in a time of great upheaval (industrialization, culture war, etc.) and counteract the distancing of individual population groups from the church and worship.