diff --git a/README.md b/README.md
index 43f3c51..484e3e9 100644
--- a/README.md
+++ b/README.md
@@ -19,6 +19,7 @@ Like this project? Please considering [Sponsoring Me](https://github.com/sponsor
 * [Introduction](#introduction)
 * [Laws](#laws)
     * [Amdahl's Law](#amdahls-law)
+    * [The Broken Windows Theory](#the-broken-windows-theory)
     * [Brooks' Law](#brooks-law)
     * [Conway's Law](#conways-law)
     * [Cunningham's Law](#cunninghams-law)
@@ -98,6 +99,24 @@ See also:
 - [Brooks' Law](#brooks-law)
 - [Moore's Law](#moores-law)
 
+### The Broken Windows Theory
+
+[The Broken Windows Theory on Wikipedia](https://en.wikipedia.org/wiki/Broken_windows_theory)
+
+The Broken Windows Theory suggests that visible signs of crime (or lack of care of an environment) lead to further and more serious crimes (or further deterioration of the environment).
+
+This theory has been applied to software development, suggesting that poor quality code (or [Technical Debt](#TODO)) can lead to a perception that efforts to improve quality may be ignored or undervalued, thus leading to further poor quality code. This effect cascades leading to a great decrease in quality over time.
+
+See also:
+
+- [Technical Debt](#TODO)
+
+Examples:
+
+- [The Pragmatic Programming: Software Entropy](https://pragprog.com/the-pragmatic-programmer/extracts/software-entropy)
+- [Coding Horror: The Broken Window Theory](https://blog.codinghorror.com/the-broken-window-theory/)
+- [OpenSource: Joy of Programming - The Broken Window Theory](https://opensourceforu.com/2011/05/joy-of-programming-broken-window-theory/)
+
 ### Brooks' Law
 
 [Brooks' Law on Wikipedia](https://en.wikipedia.org/wiki/Brooks%27s_law)