Appendix Labels
Appendix labels organize supplementary material outside the main body. Purdue’s APA guidance uses lettered labels for multiple appendices and carries the appendix letter into labels for figures and tables within an appendix.
Use the appendix-label system required by your style guide. A common system uses “Appendix” for a single appendix and letters such as “Appendix A” and “Appendix B” for multiple appendices.
Key details
Important caveats
Style Boundary
Appendix labeling conventions differ by style system and publisher; use the applicable guide rather than assuming APA-style lettering is universal.
Further guidance
Contained Items
When appendices contain figures or tables, their labels can incorporate the appendix letter, such as Figure A1 or Table B1, according to the governing style.
Example
“See Appendix B.” A table inside that appendix may be labeled “Table B1” under the cited convention. If another publisher uses numbered appendices, follow that system instead.
Practical Application
Under the cited APA-style system, use “Appendix” for one appendix and letters for multiple appendices: “Appendix A,” “Appendix B,” and so on. Carry the appendix letter into internal figure/table labels when the style requires it.
Reader Check
Check whether your required style uses letters, numbers, or another system, and make cross-references match exactly. A label is useful only if the text, table of contents, and contained items use the same identifier.
Single Multiple
Under the cited APA-style guidance, a single appendix is labeled Appendix, while multiple appendices use capital letters such as Appendix A and Appendix B.
Sources and evidence
Sources are shown with the role they play in this guide. Historical or style-sensitive claims are kept within the evidence boundary described above.
- Footnotes & Appendices — Purdue OWL (opens in a new tab)Purdue Online Writing Lab · Appendix labels and appendix-contained table/figure label conventions in APA-style documents