diff --git a/java-numbers-3/README.md b/java-numbers-3/README.md
index 08e8dae8ef..a331a979ad 100644
--- a/java-numbers-3/README.md
+++ b/java-numbers-3/README.md
@@ -2,3 +2,4 @@
 
 - [Generating Random Numbers](https://www.baeldung.com/java-generating-random-numbers)
 - [Convert Double to Long in Java](https://www.baeldung.com/java-convert-double-long)
+- [Guide to the Java Number Class](http://inprogress.baeldung.com/?p=180694&preview=true)