The+Joshua+Tree

I have copied this story from: http://www.dailyblogtips.com/crapthe-four-principles-of-sound-design/

The Joshua Tree
To get your head around the c.ra.p. principles let me tell you a true story aptly named The Joshua Tree from Robin Williams book, the Non Designers Type Book. media type="custom" key="6998223"
 * The moral of the story?** Once Robin was conscious of the tree, once she could name it, she saw could see it everywhere. Which is exactly my point. Once you can name something, you’re conscious of it. You have power over it. You own it. You’re in control.

You probably already use some of the design principles without realising it. This isn't knew stuff we are just clarifying what we already know!