Ah yes, The Painter of Happy Little Trees. This guy made a whole hunk of cash too selling "How To Paint" books.
Hilarious.
What's with the flying wombat?
***Ah yes, The Painter of Happy Little Trees.***
I think it is Bill Alexander who paints the "happy little trees" and "the happy little clouds floating by."
Otherwise, there is not much difference in their style.
They DO get people to try their hand at painting and overcoming the fear of putting paint on canvas.
You should read some of the threads on the art sites about Bob Ross' business practices.