diff --git a/640.md b/640.md
index f78bb8b..55a2ff5 100644
--- a/640.md
+++ b/640.md
@@ -61,7 +61,18 @@ Each stepper will be moved forwards and backwards through 200 steps when the tes
 ``` bash
 $ python 640steppertest.py
 ```
+
+### Import libraries
+
+Now you know everything works, it's time to write your own scripts. So create a new python script in your editor, within the *darkwater_python_640* directory with a memorable name and add the following lines to import our libraries:
+
+``` python
+import time
+from darkwater_640.darkwater_640 import dw_Controller, dw_Motor
+```
+
 ### Drive a motor
+
 ### Motor speed
 ### Servo control