diff --git a/core-java-modules/core-java-concurrency-basic-2/README.md b/core-java-modules/core-java-concurrency-basic-2/README.md
index c9f1c11a89..455ff52081 100644
--- a/core-java-modules/core-java-concurrency-basic-2/README.md
+++ b/core-java-modules/core-java-concurrency-basic-2/README.md
@@ -11,4 +11,5 @@ This module contains articles about basic Java concurrency
 - [How to Stop Execution After a Certain Time in Java](https://www.baeldung.com/java-stop-execution-after-certain-time)
 - [How to Get the Number of Threads in a Java Process](https://www.baeldung.com/java-get-number-of-threads)
 - [Set the Name of a Thread in Java](https://www.baeldung.com/java-set-thread-name)
+- [Thread vs. Single Thread Executor Service](https://www.baeldung.com/java-single-thread-executor-service)
 - [[<-- Prev]](../core-java-concurrency-basic)[[Next -->]](../core-java-concurrency-basic-3)