<p>I always found essays about writing kind of odd, though... if you can do it nicely, go for it, but the concept is a difficult one. Writing about writing....</p>
<p>I would say show it through your school paper, literary magazine, writer's club...</p>
<p>Get your English teacher to write one of your recommendations. Assuming you are a good student (and if you can write then you should be in an English class) he/she will likely include that in the rec.</p>
<p>And you don't have to write an essay about writing....just write a killer essay</p>