Atlanta artists and art enthusiasts, gather 'round for the first WonderRoot ART LOCK-IN. Beginning today, painters, sculptors, illustrators, filmmakers, ceramicists, photographers, musicians, writers and all others are invited to explore their creative strengths for 24 hours of art-making and the like. Materials, food and drinks will be provided, but since WonderRoot space is limited to 50 artists, registration is encouraged. An exhibition of the resulting work will follow throughout the month of September, with an opening reception Sept. 10. $5. 8 p.m. 982 Memorial Drive. 404-254-5955. www.wonderroot.org.