The 39 th Annual National Pastel Show will be on display during the month of October inside the Tower Gallery in Grapevine. The Pastel Society of the Southwest (PSSW) was organized in 1979 to further education in, application for, and encouragement of the use of the pastel medium. In the fall, PSSW holds an annual membership exhibition juried by a prominent, national artist. This has become the highlight of the society's year with 50 or more of the best works chosen to hang from many entries.