diff --git a/free-programming-books.md b/free-programming-books.md
index 8f8d5368f8c7186f4ca96e3568856a9c38021826..b6105c61bf4d31ac60b0dc13395641f189f6d428 100644
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@@ -632,6 +632,7 @@
 * [The Java Tutorial 4th Edition](http://download.oracle.com/javase/tutorial/) - Sharon Zakhour, Scott Hommel, Jacob Royal, Isaac Rabinovitch, Tom Risser, Mark Hoeber
 * [Core Servlets and JavaServer Pages](http://pdf.coreservlets.com/) - Marty Hall and Larry Brown
 * [Introduction to Programming Using Java](http://math.hws.edu/javanotes/) - David J. Eck
+* [Introduction to Programming in Java](http://introcs.cs.princeton.edu/java/home/)- Robert Sedgewick and Kevin Wayne
 
 ####Wicket
 * [Official Free Online Guide for Apache Wicket framework](http://wicket.apache.org/guide/)