Appendix A is a supplementary section typically found at the end of a document or report. It provides additional information that supports the main content, such as data tables, charts, or detailed explanations. This section helps readers understand complex topics without interrupting the flow of the main text. In many cases, Appendix A includes references to specific studies, methodologies, or examples that are relevant to the subject matter. By including this information, authors can offer a more comprehensive view while keeping the primary narrative concise and focused.