diff --git a/chp1/README.md b/01_Introduction/README.md
similarity index 100%
rename from chp1/README.md
rename to 01_Introduction/README.md
diff --git a/chp1/syscalls/example1.c b/01_Introduction/syscalls/example1.c
similarity index 100%
rename from chp1/syscalls/example1.c
rename to 01_Introduction/syscalls/example1.c
diff --git a/chp2/README.md b/02_FileIO/README.md
similarity index 100%
rename from chp2/README.md
rename to 02_FileIO/README.md
diff --git a/chp2/fopenflags.c b/02_FileIO/fopenflags.c
similarity index 100%
rename from chp2/fopenflags.c
rename to 02_FileIO/fopenflags.c
diff --git a/chp2/fopenmode.c b/02_FileIO/fopenmode.c
similarity index 100%
rename from chp2/fopenmode.c
rename to 02_FileIO/fopenmode.c
diff --git a/chp2/fpread.c b/02_FileIO/fpread.c
similarity index 100%
rename from chp2/fpread.c
rename to 02_FileIO/fpread.c
diff --git a/chp2/fread.c b/02_FileIO/fread.c
similarity index 100%
rename from chp2/fread.c
rename to 02_FileIO/fread.c
diff --git a/chp2/ftruncate.c b/02_FileIO/ftruncate.c
similarity index 100%
rename from chp2/ftruncate.c
rename to 02_FileIO/ftruncate.c
diff --git a/chp2/pirate.txt b/02_FileIO/pirate.txt
similarity index 100%
rename from chp2/pirate.txt
rename to 02_FileIO/pirate.txt
diff --git a/chp2/poll.c b/02_FileIO/poll.c
similarity index 100%
rename from chp2/poll.c
rename to 02_FileIO/poll.c
diff --git a/chp2/read.txt b/02_FileIO/read.txt
similarity index 100%
rename from chp2/read.txt
rename to 02_FileIO/read.txt
diff --git a/chp2/select.c b/02_FileIO/select.c
similarity index 100%
rename from chp2/select.c
rename to 02_FileIO/select.c
diff --git a/chp2/select_regular_files.c b/02_FileIO/select_regular_files.c
similarity index 100%
rename from chp2/select_regular_files.c
rename to 02_FileIO/select_regular_files.c
diff --git a/chp3/README.md b/03_BufferedIO/README.md
similarity index 100%
rename from chp3/README.md
rename to 03_BufferedIO/README.md
diff --git a/chp3/binarydata.c b/03_BufferedIO/binarydata.c
similarity index 100%
rename from chp3/binarydata.c
rename to 03_BufferedIO/binarydata.c
diff --git a/chp3/input.c b/03_BufferedIO/input.c
similarity index 100%
rename from chp3/input.c
rename to 03_BufferedIO/input.c
diff --git a/chp4/README.md b/04_AdvancedFileIO/README.md
similarity index 100%
rename from chp4/README.md
rename to 04_AdvancedFileIO/README.md
diff --git a/chp4/blocks.c b/04_AdvancedFileIO/blocks.c
similarity index 100%
rename from chp4/blocks.c
rename to 04_AdvancedFileIO/blocks.c
diff --git a/chp4/buccaneer.txt b/04_AdvancedFileIO/buccaneer.txt
similarity index 100%
rename from chp4/buccaneer.txt
rename to 04_AdvancedFileIO/buccaneer.txt
diff --git a/chp4/inode.c b/04_AdvancedFileIO/inode.c
similarity index 100%
rename from chp4/inode.c
rename to 04_AdvancedFileIO/inode.c
diff --git a/chp4/mmap.c b/04_AdvancedFileIO/mmap.c
similarity index 100%
rename from chp4/mmap.c
rename to 04_AdvancedFileIO/mmap.c
diff --git a/chp4/readv.c b/04_AdvancedFileIO/readv.c
similarity index 100%
rename from chp4/readv.c
rename to 04_AdvancedFileIO/readv.c
diff --git a/chp4/writev.c b/04_AdvancedFileIO/writev.c
similarity index 100%
rename from chp4/writev.c
rename to 04_AdvancedFileIO/writev.c
diff --git a/chp5/README.md b/05_ProcessManagement/README.md
similarity index 100%
rename from chp5/README.md
rename to 05_ProcessManagement/README.md
diff --git a/chp5/atexit.c b/05_ProcessManagement/atexit.c
similarity index 100%
rename from chp5/atexit.c
rename to 05_ProcessManagement/atexit.c
diff --git a/chp5/daemon.c b/05_ProcessManagement/daemon.c
similarity index 100%
rename from chp5/daemon.c
rename to 05_ProcessManagement/daemon.c
diff --git a/chp5/session.c b/05_ProcessManagement/session.c
similarity index 100%
rename from chp5/session.c
rename to 05_ProcessManagement/session.c
diff --git a/chp5/system.c b/05_ProcessManagement/system.c
similarity index 100%
rename from chp5/system.c
rename to 05_ProcessManagement/system.c
diff --git a/chp5/wait.c b/05_ProcessManagement/wait.c
similarity index 100%
rename from chp5/wait.c
rename to 05_ProcessManagement/wait.c
diff --git a/chp6/README.md b/06_AdvancedProcessManagement/README.md
similarity index 100%
rename from chp6/README.md
rename to 06_AdvancedProcessManagement/README.md
diff --git a/chp6/affinity.c b/06_AdvancedProcessManagement/affinity.c
similarity index 100%
rename from chp6/affinity.c
rename to 06_AdvancedProcessManagement/affinity.c
diff --git a/chp6/nice.c b/06_AdvancedProcessManagement/nice.c
similarity index 100%
rename from chp6/nice.c
rename to 06_AdvancedProcessManagement/nice.c
diff --git a/chp7/README.md b/07_Threading/README.md
similarity index 100%
rename from chp7/README.md
rename to 07_Threading/README.md
diff --git a/chp7/thread.c b/07_Threading/thread.c
similarity index 100%
rename from chp7/thread.c
rename to 07_Threading/thread.c
diff --git a/chp9/README.md b/09_MemoryManagement/README.md
similarity index 100%
rename from chp9/README.md
rename to 09_MemoryManagement/README.md
diff --git a/chp9/alignviolation.c b/09_MemoryManagement/alignviolation.c
similarity index 100%
rename from chp9/alignviolation.c
rename to 09_MemoryManagement/alignviolation.c
diff --git a/chp9/malloc.c b/09_MemoryManagement/malloc.c
similarity index 100%
rename from chp9/malloc.c
rename to 09_MemoryManagement/malloc.c
diff --git a/chp9/mallstats.c b/09_MemoryManagement/mallstats.c
similarity index 100%
rename from chp9/mallstats.c
rename to 09_MemoryManagement/mallstats.c
diff --git a/chp9/stackallocation.c b/09_MemoryManagement/stackallocation.c
similarity index 100%
rename from chp9/stackallocation.c
rename to 09_MemoryManagement/stackallocation.c
diff --git a/chp9/test_malloc.c b/09_MemoryManagement/test_malloc.c
similarity index 100%
rename from chp9/test_malloc.c
rename to 09_MemoryManagement/test_malloc.c
diff --git a/chp10/README.md b/10_Signals/README.md
similarity index 100%
rename from chp10/README.md
rename to 10_Signals/README.md
diff --git a/chp10/multihandler.c b/10_Signals/multihandler.c
similarity index 100%
rename from chp10/multihandler.c
rename to 10_Signals/multihandler.c
diff --git a/chp10/pause.c b/10_Signals/pause.c
similarity index 100%
rename from chp10/pause.c
rename to 10_Signals/pause.c
diff --git a/chp10/simple_catch.c b/10_Signals/simple_catch.c
similarity index 100%
rename from chp10/simple_catch.c
rename to 10_Signals/simple_catch.c
diff --git a/README.md b/README.md
index 192402f..6ebb013 100644
--- a/README.md
+++ b/README.md
@@ -4,15 +4,15 @@ Welcome! This is a collection of chapter summaries from the book **Linux System
 
 ## Available Chapters
 
-- [Chapter 1 – Introduction and Core Concepts](chp1/README.md)
-- [Chapter 2 – File I/O](chp2/README.md)
-- [Chapter 3 – Buffered I/O](chp3/README.md)
-- [Chapter 4 – Advanced File I/O](chp4/README.md)
-- [Chapter 5 - Process Management](chp5/README.md)
-- [Chapter 6 - Advanced Process Management](chp6/README.md)
-- [Chapter 7 - Threading](chp7/README.md)
-- [Chapter 9 - Memory Management](chp9/README.md)
-- [Chapter 10 - Signals](chp10/README.md)
+- [Chapter 1 – Introduction and Core Concepts](01_Introduction/README.md)
+- [Chapter 2 – File I/O](02_FileIO/README.md)
+- [Chapter 3 – Buffered I/O](03_BufferedIO/README.md)
+- [Chapter 4 – Advanced File I/O](04_AdvancedFileIO/README.md)
+- [Chapter 5 - Process Management](05_ProcessManagement/README.md)
+- [Chapter 6 - Advanced Process Management](06_AdvancedProcessManagement/README.md)
+- [Chapter 7 - Threading](07_Threading/README.md)
+- [Chapter 9 - Memory Management](09_MemoryManagement/README.md)
+- [Chapter 10 - Signals](10_Signals/README.md)
 - [Exercises](exercises/README.md)
 
 > Each file contains an English summary of the chapter's key concepts.