Click on the image to link to the exercise.   In all cases, these exercises assume default properties settings.   Click Options>"Set Properties to Default" and Options>"Set Other Defaults" before beginning these exercises.  
Exercise 1 - Demonstrates painting colors, resizing, blurring, negative and log CMY color space.
 
Exercise 2 - Demonstrates masking by color and hue rotation in HSV space as a painted operation.
 
Exercise 3 - Demonstrates generating an unmasked area with the paint cursor and four point registration.
 
Exercise 4 - Demonstrates the use of box interpolation in precision masking.
Exercise 5 - Demonstrates Lens Blurring of an Object in Foreground.