What is the author's style in The Seducer's Diary by Soren Kierkegaard?

The Seducer's Diary has three perspectives, one quite minor and the other two comprise the book. The first perspective is that of the narrator in the first several pages who has come upon Johannes's diary and is telling the reader about its contents and the events surrounding the diary. He also discusses what of Johannes and Cordelia's relationship was known to the public.