diff --git a/README.md b/README.md
index 061c261..5ea415c 100644
--- a/README.md
+++ b/README.md
@@ -180,6 +180,21 @@ This chapter covers hacking dynamic conditionals as it relates to embedded devel
 
 -> Click [HERE](https://github.com/mytechnotalent/Embedded-Hacking/blob/main/Embedded-Hacking.pdf) to read the FREE pdf book.
 
+## Chapter 35: Functions, w/o Param, w/o Return
+This chapter covers functions, w/o params and without a return value as it relates to embedded development on the Pico W.
+
+-> Click [HERE](https://github.com/mytechnotalent/Embedded-Hacking/blob/main/Embedded-Hacking.pdf) to read the FREE pdf book.
+
+## Chapter 36: Debugging Functions, w/o Param, w/o Return
+This chapter covers debugging functions, w/o params and without a return value as it relates to embedded development on the Pico W.
+
+-> Click [HERE](https://github.com/mytechnotalent/Embedded-Hacking/blob/main/Embedded-Hacking.pdf) to read the FREE pdf book.
+
+## Chapter 37: Hacking Functions, w/o Param, w/o Return
+This chapter covers hacking functions, w/o params and without a return value as it relates to embedded development on the Pico W.
+
+-> Click [HERE](https://github.com/mytechnotalent/Embedded-Hacking/blob/main/Embedded-Hacking.pdf) to read the FREE pdf book.
+
 ## IN DEVELOPMENT
 
 ## License