diff --git a/SUMMARY.md b/SUMMARY.md
index 0121f0d..794ebeb 100644
--- a/SUMMARY.md
+++ b/SUMMARY.md
@@ -140,10 +140,13 @@ GitHub 地址：https://github.com/firmianay/CTF-All-In-One
     * [7.1.7 [CVE-2018-6323] GNU binutils 2.26.1 Integer Overflow](doc/7.1.7_binutils_2018-6323.md)
   * Malware
     * 7.2.x
-* [八、附录](doc/8_appendix.md)
-  * [8.1 更多 Linux 工具](doc/8.1_Linuxtools.md)
-  * [8.2 更多 Windows 工具](doc/8.2_wintools.md)
-  * [8.3 更多资源](doc/8.3_books&blogs.md)
-  * 8.4
-  * [8.5 Linux x86-64 系统调用表](doc/8.5_syscall.md)
-  * [8.6 幻灯片](doc/8.6_slides.md)
+* [八、学术篇](doc/8_academic.md)
+  * Return-Oriented Programming
+    * [8.1 The Geometry of Innocent Flesh on the Bone: Return-into-libc without Function Calls (on the x86)](doc/8.1_return-into-libc_without_function_calls.md)
+    * [8.2 Return-Oriented Programming without Returns](doc/8.2_return-oriented_programming_without_returns.md)
+* [九、附录](doc/9_appendix.md)
+  * [9.1 更多 Linux 工具](doc/9.1_Linuxtools.md)
+  * [9.2 更多 Windows 工具](doc/9.2_wintools.md)
+  * [9.3 更多资源](doc/9.3_books_blogs.md)
+  * [9.4 Linux x86-64 系统调用表](doc/9.4_linux_syscall.md)
+  * [9.5 幻灯片](doc/9.5_slides.md)
diff --git a/doc/8.1_return-into-libc_without_function_calls.md b/doc/8.1_return-into-libc_without_function_calls.md
new file mode 100644
index 0000000..3294c85
--- /dev/null
+++ b/doc/8.1_return-into-libc_without_function_calls.md
@@ -0,0 +1 @@
+# 8.1 The Geometry of Innocent Flesh on the Bone: Return-into-libc without Function Calls (on the x86)
diff --git a/doc/8.2_return-oriented_programming_without_returns.md b/doc/8.2_return-oriented_programming_without_returns.md
new file mode 100644
index 0000000..f07f44c
--- /dev/null
+++ b/doc/8.2_return-oriented_programming_without_returns.md
@@ -0,0 +1 @@
+# 8.2 Return-Oriented Programming without Returns
diff --git a/doc/8_academic.md b/doc/8_academic.md
new file mode 100644
index 0000000..d3d0ecd
--- /dev/null
+++ b/doc/8_academic.md
@@ -0,0 +1,8 @@
+# 第八章 学术篇
+
+论文下载：
+链接：https://pan.baidu.com/s/1G-WFCzAU2VdrrsHqJzjGpw 密码：vhfw
+
+* Return-Oriented Programming
+  * [8.1 The Geometry of Innocent Flesh on the Bone: Return-into-libc without Function Calls (on the x86)](8.1_return-into-libc_without_function_calls.md)
+  * [8.2 Return-Oriented Programming without Returns](8.2_return-oriented_programming_without_returns.md)
diff --git a/doc/8_appendix.md b/doc/8_appendix.md
deleted file mode 100644
index 2a3b616..0000000
--- a/doc/8_appendix.md
+++ /dev/null
@@ -1,8 +0,0 @@
-# 第八章 附录
-
-- [8.1 更多 Linux 工具](8.1_Linuxtools.md)
-- [8.2 更多 Windows 工具](8.2_wintools.md)
-- [8.3 更多资源](8.3_books&blogs.md)
-- 8.4
-- [8.5 Linux x86-64 系统调用表](8.5_syscall.md)
-- [8.6 幻灯片](8.6_slides.md)
diff --git a/doc/8.1_Linuxtools.md b/doc/9.1_Linuxtools.md
similarity index 99%
rename from doc/8.1_Linuxtools.md
rename to doc/9.1_Linuxtools.md
index c28140d..a538552 100644
--- a/doc/8.1_Linuxtools.md
+++ b/doc/9.1_Linuxtools.md
@@ -1,4 +1,4 @@
-# 8.1 更多 Linux 工具
+# 9.1 更多 Linux 工具
 
 - [dd](#dd)
 - [file](#file)
diff --git a/doc/8.2_wintools.md b/doc/9.2_wintools.md
similarity index 97%
rename from doc/8.2_wintools.md
rename to doc/9.2_wintools.md
index 67911e9..8e087a6 100644
--- a/doc/8.2_wintools.md
+++ b/doc/9.2_wintools.md
@@ -1,4 +1,4 @@
-# 8.2 更多 Windows 工具
+# 9.2 更多 Windows 工具
 
 - [010 Editor](#010-editor)
 - [DIE](#die)
diff --git a/doc/8.3_books&blogs.md b/doc/9.3_books_blogs.md
similarity index 99%
rename from doc/8.3_books&blogs.md
rename to doc/9.3_books_blogs.md
index bed2850..58d7afa 100644
--- a/doc/8.3_books&blogs.md
+++ b/doc/9.3_books_blogs.md
@@ -1,4 +1,4 @@
-# 8.3 更多资源
+# 9.3 更多资源
 
 - [课程](#课程)
 - [站点](#站点)
diff --git a/doc/8.5_syscall.md b/doc/9.4_linux_syscall.md
similarity index 66%
rename from doc/8.5_syscall.md
rename to doc/9.4_linux_syscall.md
index bf06867..574a324 100644
--- a/doc/8.5_syscall.md
+++ b/doc/9.4_linux_syscall.md
@@ -1,3 +1,3 @@
-# 8.5 Linux x86-64 系统调用表
+# 9.4 Linux x86-64 系统调用表
 
 http://blog.rchapman.org/posts/Linux_System_Call_Table_for_x86_64/
diff --git a/doc/8.6_slides.md b/doc/9.5_slides.md
similarity index 91%
rename from doc/8.6_slides.md
rename to doc/9.5_slides.md
index f62c719..34a5970 100644
--- a/doc/8.6_slides.md
+++ b/doc/9.5_slides.md
@@ -1,4 +1,4 @@
-# 8.6 幻灯片
+# 9.5 幻灯片
 
 这些是我在 XDSEC 做分享的 PPT，主要内容取自 CTF-All-In-One，可作为辅助学习。
 
diff --git a/doc/9_appendix.md b/doc/9_appendix.md
new file mode 100644
index 0000000..86c181f
--- /dev/null
+++ b/doc/9_appendix.md
@@ -0,0 +1,7 @@
+# 第九章 附录
+
+* [9.1 更多 Linux 工具](9.1_Linuxtools.md)
+* [9.2 更多 Windows 工具](9.2_wintools.md)
+* [9.3 更多资源](9.3_books_blogs.md)
+* [9.4 Linux x86-64 系统调用表](9.4_linux_syscall.md)
+* [9.5 幻灯片](9.5_slides.md)