An appendix in writing is a section placed at the end of a paper or document that contains supplementary material not included in the main text because it is too detailed, lengthy, or would disrupt the flow of the writing. This material can include raw data, charts, graphs, interview transcripts, questionnaires, maps, or detailed explanations that support or enhance the reader's understanding but are not essential to the core argument or narrative
. The purpose of an appendix is to provide additional information that bolsters the main content without burdening or distracting the reader. It allows the author to include relevant but nonessential details that might be helpful for readers who want to explore the topic further
. In terms of formatting, each appendix should be labeled (e.g., Appendix A, Appendix B) and titled clearly to indicate its content. Appendices usually appear after the reference list or bibliography and begin on a new page. The label and title are centered and formatted according to the style guide being used (APA, MLA, Chicago)
. In summary, an appendix is a helpful tool in academic and professional writing for including supplementary information that supports the main text without interrupting its flow.