diff --git a/19-METRICS.md b/19-METRICS.md
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index a00cb45..0000000
--- a/19-METRICS.md
+++ /dev/null
@@ -1,15 +0,0 @@
-How to create kubectl alias (optional):
-- `alias k=kubectl`
-
-Go to github and install metrics-server:
-- `https://github.com/kubernetes-sigs/metrics-server`
-
-Get Nodes metrics:
-- `k top nodes`
-
-Get Pods metrics:
-- `k top pods -n default`
-
-Order results:
-- `k top pods -n default --sort-by=cpu`
-- `k top pods -n default --sort-by=memory`
diff --git a/19-POD-LABELS.md b/19-POD-LABELS.md
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+++ b/19-POD-LABELS.md
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+How to create kubectl alias (optional):
+- `alias k=kubectl`
+
+Doc:
+- `https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/`
+
+Add two labels on a POD:
+  ```
+  apiVersion: v1
+  kind: Pod
+  metadata:
+    name: nginx-labels-pod
+    labels:
+      environment: production
+      app: nginx
+  spec:
+    containers:
+    - name: nginx
+      image: nginx:1.14.2
+      ports:
+      - containerPort: 80`
+   ```
+   
+Get Pods by labels:
+- `k get pods -l environment=production,tier=frontend`