diff --git a/1.Basics.md b/1.Basics.md
index 3bfadb3..591dc68 100644
--- a/1.Basics.md
+++ b/1.Basics.md
@@ -6,4 +6,19 @@
 
 <p align="center">
 <img src="https://git.le-club-des-sans-sujets.org/gauthiier/Revisiting-Concepts-Notations-Software-Art/raw/branch/main/img/interpreter.svg" height="150"/>
-</p>
\ No newline at end of file
+</p>
+
+## Sketch: 0. Hello World
+'''javascript
+// Hello world! 
+// This is comment
+
+function setup() {
+  createCanvas(400, 400);
+}
+
+function draw() {
+  background(220);
+  print("Hello World");          // see the console below ↓
+}
+'''
\ No newline at end of file