diff --git a/thinkcspy/Chapter-17-18-Exercises/points.py b/thinkcspy/Chapter-17-18-Exercises/points.py
index 308605e..23ac392 100644
--- a/thinkcspy/Chapter-17-18-Exercises/points.py
+++ b/thinkcspy/Chapter-17-18-Exercises/points.py
@@ -1,3 +1,7 @@
+# Runestone.Academy thinkcspy course
+# Chapter 17
+# Problems 1 - 6
+
 import math
 
 class Point:
diff --git a/thinkcspy/Chapter-17-18-Exercises/rectangle.py b/thinkcspy/Chapter-17-18-Exercises/rectangle.py
index 0c3f318..e26e6ff 100644
--- a/thinkcspy/Chapter-17-18-Exercises/rectangle.py
+++ b/thinkcspy/Chapter-17-18-Exercises/rectangle.py
@@ -1,3 +1,7 @@
+# Runestone.Academy thinkcspy course
+# Chapter 18
+# Problem 7 - 14
+
 from points import Point
 
 class Rectangle: