Urban Sketching with Michael Callahan is on the second Thursdays of May-July from 6-8 p.m. (May 11, June 8, July 13) Explore urban sketching with Michael Callahan as your guide. This drawing practice capitalizes on the portability of watercolor and ink while emphasizing speed and freshness over realism. Must be 18+. Meets at the Arts Center, first in the lower gallery, then the group will hit the sidewalks. No advance registration, but there is a $10 drop-in fee.