The article focuses on textbooks preserved in two libraries in Alba Iulia, the Batthyaneum Library and the Library of Roman-Catholic Theological Institute, historically called Seminarium Incarnatae Sapientiae. Through the natural circulation of books, gifts or purchases, hundreds of prints from Slovak printing houses, including textbooks and scientific and documentary literature used by students and teachers or Roman Catholic diocese staff, have entered the collections of these rich libraries. The common denominator of these Transylvanian institutions and printers from Trnava and Košice in Slovakia was the Catholic confession.

The work also focuses on the authors of textbooks, most of whom were members of the Jesuit Order, professors at the University of Trnava or Košice. These include authors of Latin, Greek, Hungarian grammars, authors of textbooks of philosophy, theology, arithmetic, etc. Interesting is the volume in which three different pairs of catechisms are bound, for the Slovaks in Hungarian language and another three in Romanian language for the inhabitants of Transylvania. This was a consequence of the educational policy pursued in the Habsburg Empire.