diff --git a/chapters/18-List-of-Uarch-ISA/18-0 List of uarchs.md b/chapters/17-List-of-Uarch-ISA/17-0 List of uarchs.md similarity index 100% rename from chapters/18-List-of-Uarch-ISA/18-0 List of uarchs.md rename to chapters/17-List-of-Uarch-ISA/17-0 List of uarchs.md diff --git a/chapters/19-Appendix/Appendix-A.md b/chapters/18-Appendix/Appendix-A.md similarity index 100% rename from chapters/19-Appendix/Appendix-A.md rename to chapters/18-Appendix/Appendix-A.md diff --git a/chapters/19-Appendix/Appendix-B.md b/chapters/18-Appendix/Appendix-B.md similarity index 100% rename from chapters/19-Appendix/Appendix-B.md rename to chapters/18-Appendix/Appendix-B.md diff --git a/chapters/19-Appendix/Appendix-C.md b/chapters/18-Appendix/Appendix-C.md similarity index 100% rename from chapters/19-Appendix/Appendix-C.md rename to chapters/18-Appendix/Appendix-C.md diff --git a/chapters/19-Appendix/Appendix-D.md b/chapters/18-Appendix/Appendix-D.md similarity index 100% rename from chapters/19-Appendix/Appendix-D.md rename to chapters/18-Appendix/Appendix-D.md