diff --git a/README.md b/README.md
index 739f81e..a354d85 100644
--- a/README.md
+++ b/README.md
@@ -25,6 +25,11 @@ This chapter covers the hacking of our firmware for the Pico W MCU hello, world
 
 -> Click [HERE](https://github.com/mytechnotalent/Embedded-Hacking/blob/main/Embedded-Hacking.pdf) to read the FREE pdf book.
 
+## Chapter 4: Embedded System Analysis
+This chapter covers a comprehensive embedded system analysis reviewing parts of the RP2040 datasheet and helpful firmware analysis tools.
+
+-> Click [HERE](https://github.com/mytechnotalent/Embedded-Hacking/blob/main/Embedded-Hacking.pdf) to read the FREE pdf book.
+
 ## IN DEVELOPMENT
 
 ## License