What’s a picture worth in prose

Seeing as so much of writing is in the visualisation I set myself a task a while ago; to sketch all of the main characters in the work in progress. And seeing as there was a good reason I studied lit and not art, the results weren’t exactly amazing. 🙂

However, I did find it a really useful way of putting a physical face to my new friends – even if it was because I was thinking ‘well, she won’t look anything like THAT’. Now I’m wondering how many prose writers out there sketch characters, maps, layouts or even fashion designs for their stories?