What is the author's style in Either/Or by Soren Kierkegaard?

The structure of the work, Either/Or, is rather clear. There are three main sections of text. This is the closest thing to chapters that are found in this work. The first of these is The Aesthetic Validity of Marriage. It is followed by another large section known as Equilibrium. There is a shorter work after this, called the Ultimatum. These are surrounded by other factors. One of these is of course the introductory pieces.

The beginning of the book has a Translator's Preface. Within this, Walter Lowrie tells the true story of how the manuscript was first discovered. The sequence of events that were sparked off by the find are included. Following that is the Introduction by the Translator.

Much later, then, at the end of the book there is a little more. These are simply the Notes and the Index.

The book as a whole is fluid. Between the introductory materials and notes the rest has been intentionally designed as two very long letters. This has been done intentionally. The author is actually quite good at it. There is no avoiding SK's mastery of the personal and interpersonal. Because he has so clearly envisioned the reader, he has been able to craft the work at least as well as any of today's best direct marketing mailings. Unlike those, however, the message is book length and includes sophisticated yet clear ideas.