The document discusses letter structures in the New Testament epistles. It notes that style, format and authorship will be discussed to help determine who the author is writing to. The main writing style was the Hellenistic style during Christ's time, which consisted of three structures - the prescript, body and conclusion. Analyzing similarities in writing style, content and context can help identify authors. The document would go on to provide more details on analyzing New Testament epistolary literature and the 21 writings that exhibit letter features.