Every May there is a world wide challenge to do a sketch for every day of the month. In late April a list of subjects, or prompts, one for each day, is posted on several social media sites, like Facebook and Flickr. This is the fifth year I've participated. I haven't ever done a sketch for each day, but try to do as many as I'm inspired to sketch. Each year I've tried to attempt a different way to sketch, using different materials or a different approach to the subjects. This year I'm trying to just use a variety of pens and not any watercolor. It's always a challenge but so much fun, and great to see how other artists interpret the subjects.