Some people are afraid of showing their drawing to others. They think they’ll be ridiculed if their sketch looks like it was drawn by a five-year old.

In truth, it doesn’t matter if you are good at sketching. The less formal the sketch, the better. In fact, avoid the urge to use a pencil as it leaves too much room for you to ponder, erase, re-draw, second-guess…

But a permanent marker, now you’re talking. A nice big, fat Sharpie is the perfect tool because it requires you to really think through your idea before you put the pen to the paper. “What if it doesn’t work or the layout’s all wrong? ” Great! Grab a new piece of paper and start from where you left off, having learned something valuable in a matter of minutes.

The sketch is not the end goal. The end goal of the drawing process is what you learn while sketching. So don’t worry if you can’t sketch. In fact, if you’re too good you might just fool yourself into thinking your sketch is a deliverable. It’s not. The real value of sketching is that it allows you to explore and refine ideas in a quick, iterative and visual manner with little overhead or learning curve. Rapid ideation around flow and interaction, layout and hierarchy, can be quickly established, rearranged or discarded wholesale—all without ever touching a computer.

From http://52weeksofux.com/tagged/week_3