The history of western literature has always been centered by a few specific pieces of literature works. This research aims to find which of these canon-listed works that has survived over 30 years in six different textbooks in the Swedish subject. This essay is primarily based on quantative research made on three different curriculums from the upper secondary school and six different textbook that aims to display how the canon of authorships in textbooks has changed over the course of 30 years and how it reflects in the school curriculum and textbooks. The study found that over the course of 30 years only 25 authorships have been reoccurring in all of the textbooks. The cause of this shortcoming of authorships is, from a curriculum perspective, because of the discourse of literature in the different curriculums over the years. Technological advances and the purpose of the different textbooks were also shown to affect the outcome of the canon-lists that this essay presents.