diff --git a/README.md b/README.md
index 7481366..2f945a0 100644
--- a/README.md
+++ b/README.md
@@ -22,3 +22,15 @@ A Set data type with the following methods.
   fromList  (to instantiate from a list)
   toList    (to makes a list)
   
+
+ example:
+
+ var set1 = new Set()
+ var set2 = new Set()
+ set1.add(1).add(2).add(3)
+ set2.add(3).add(4).add(5)
+
+ set1.union(set2)        => Set<1, 2, 3, 4, 5>
+ set1.intersection(set2) => Set<3>
+
+ see tests.js for more examples
diff --git a/set.js b/set.js
index bf8a635..34b2f56 100644
--- a/set.js
+++ b/set.js
@@ -4,7 +4,15 @@
  *  under the terms of either the MIT License or the GNU General Public License (GPL) Version 2.
  *
  example:
+ var set1 = new Set()
+ var set2 = new Set()
+ set1.add(1).add(2).add(3)
+ set2.add(3).add(4).add(5)
 
+ set1.union(set2)        => Set<1, 2, 3, 4, 5>
+ set1.intersection(set2) => Set<3>
+
+ see tests.js for more examples;
 
  + add
  + clear
diff --git a/tests.js b/tests.js
index d9dc6ef..bed4703 100644
--- a/tests.js
+++ b/tests.js
@@ -174,6 +174,13 @@ assert.ok(!s1.isSuperset(s2));
 
 var temp = s2.union(s1);
 
+var set1 = new Set()
+var set2 = new Set()
+set1.add(1).add(2).add(3)
+set2.add(3).add(4).add(5)
+
+sys.puts(set1.union(set2));
+sys.puts(set1.intersection(set2));
 
 sys.puts(s2.union(s3).add(4));
 sys.puts("All passed.");
\ No newline at end of file