The Importance of Being Simple

I just came across a letter from 1998 that made my day. Here's the backstory: Amir, a 14-year-old aspiring cartoonist, sends some of his drawings to John Kricfalusi, creator of Ren and Stimpy. Here's Kricfalusi's response (edited for space).

Dear Amir,

Thanks for your letter and all your cartoons to look at. Your comics are pretty good, especially your staging and continuity. You might have the makings of a good storyboard artist. I'm sending you a very good how to draw animation book by...