WEBSITE LINKS Useful sites from around the web for more information on Pastels. Pastel Society of the Southwest The Pastel Society of the Southwest was organized in January 1979 to further education in, appreciation for, and encouragement of the use of the pastel medium. Oklahoma Pastel Society The Oklahoma Pastel Society was founded in 2003 to offer a venue for shows and workshops for local Pastel artists. The Met Pastels by Edgar Degas at the Metropolitan Museum of Art in New York. Mary Cassatt Web Museum article on Marry Cassatt (1844-1926). Her works included portraits in Pastel. What is Pastel Painting?