diff --git a/topics/kafka/README.md b/topics/kafka/README.md
index 719801e..70e16a0 100644
--- a/topics/kafka/README.md
+++ b/topics/kafka/README.md
@@ -44,3 +44,23 @@ An application that publishes data to the Kafka cluster.
 
 - Broker: a server with kafka process running on it. Such server has local storage. In a single Kafka clusters there are usually multiple brokers.
 </b></details>
+
+<details>
+  <summary>What is the role of ZooKeeper is Kafka?</summary><br/><b>
+In Kafka, Zookeeper is a centralized controller that manages metadata for producers, brokers, and consumers.
+Zookeeper also:
+    <ul>
+      <li>Tracks which brokers are part of the Kafka cluster</li>
+      <li>
+Determines which broker is the leader of a given partition and topic
+      </li>
+      <li>
+Performs leader elections
+      </li>
+      <li>
+Manages cluster membership of brokers
+      </li>
+    </ul>
+
+  </b>
+</details>