Waterstone Gallery will begin celebrating its 20th year in 2012 with The Sum of the Parts, a group exhibition featuring three of its founding members, Deb Dewitt, Gail Beppu and Stan Beppu, and the sixteen current Waterstone Gallery artists. This annual group exhibition provides an opportunity to experience the diversity of voice and media Waterstone Gallery represents, as well as the artistic cross pollination that occurs over time when a group of artists work closely together. There will be a round table discussion about the exhibit and gallery led by gallery co-directors Trisha Hassler and Keaney Rathbun on Saturday February 18th at 11am. The exhibit runs from January 18th through February 26th. Waterstone Gallery is a member of the Portland Art Dealer's Association and participates in First Thursday.