diff --git a/README.md b/README.md
index 65befdb..0c8c26b 100644
--- a/README.md
+++ b/README.md
@@ -13,10 +13,12 @@
     * [Lesson 1 - Evaluation](#lesson-1---evaluation)
     * [Lesson 2 - Higher order functions](#lesson-2---higher-order-functions)
     * [Lesson 3 - Data structures](#lesson-3---data-structures)
+    * [Lesson 4 - Lists and pattern matching](#lesson-4---lists-and-pattern-matching)
   * [Assignments](#assignments)
     * [Assignment 1 - Square root](#assignment-1---square-root)
     * [Assignment 2 - Map-reduce](#assignment-2---map-reduce)
     * [Assignment 3 - Binary tree](#assignment-3---binary-tree)
+    * [Assignment 4 - Lists and pattern matching](#assignment-4---lists-and-pattern-matching)
 <!-- TOC -->
 
 
@@ -41,6 +43,12 @@
 - Binary tree
 - Operation precedence
 
+### Lesson 4 - Lists and pattern matching
+[Files](src/Lesson4)
+- List
+- Pattern matching
+- Genericity
+
 ## Assignments
 
 ### Assignment 1 - Square root
@@ -60,3 +68,10 @@
 - Int set
 - Binary tree
 - Union / intersection / foreach
+
+### Assignment 4 - Lists and pattern matching
+[Files](src/Assignment4)
+- Expression interpreter
+- Binary tree
+- List functions
+- Predicates (any / every)
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