This paper is a study of Vadstena monastery's book acquisitions and book collection 1374-1595. Studying catalogue descriptions of manuscripts and incunabula in Uppsala University library, the author has aimed to examine the development over a period of time, concentrating on way and place of acquisition, and desired types of texts. A short description and history of the monastery and its library is given. The study opens with the author stating there must have existed a plan for the book acquisitions and collection. A survey investigation shows, that the usable material is too small and somewhat nonrepresenta­tive of the monastery library to form a basis for a fair analysis. Further investigations give material to form a basis for some careful statements, saying that book production and also acquisitions concentrated on sermons literature, and that this type dominated the library collection throughout the time of development, followed by the philosophical-theological university literature.