This document provides an overview of business reports, including their definition, classification, and typical structure. It discusses the key parts of long formal reports, such as prefatory parts like the cover, title page, and table of contents. It also discusses supplemental parts like the appendix and bibliography. The document outlines different ways to classify reports based on their function, subject matter, formality, origin, and frequency. Finally, it provides guidance on outlining the report, using visual aids like headings and graphics, and properly referencing sources.