For the past couple of weeks, I've been taking an on-line course on how to color properly with Copic markers. Copics are alcohol based markers - architects, interior designers, comic book illustrators, etc. use similar based markers.
I've become more obsessed with Copic markers since I started designing for Card Cupids because we use digital stamps. So when this course came along from Created from Color - I just knew I had to sign up.
Anyway, I'm no expert yet, but I am liking the results so far!