Debra Kauffman Yaun discovered that she had a knack for drawing people when she was a young girl growing up in Tampa, Florida. After graduating from the Ringling School of Art and Design in Sarasota, Florida, Debra worked as a fashion illustrator. She has drawn and painted many commissioned portraits, several of which have been of children-her favorite subject to draw. Debra's artwork has been published in several art magazines and books, and she has won numerous awards, including an international prize. She is a signature member of the Colored Pencil Society of America, having served as president of the Atlanta chapter, and she is a juried member of the Portrait Society of Atlanta. She also enjoys teaching classes and workshops in portraits and colored pencil. Debra lives in Buford, GA.

Recognized as one of America's foremost colorists, William F. Powell has taught art classes and workshops for 35 years in various art media. Today he is an extremely popular author, and he attracts more admirers each year with the numerous titles he has produced for Walter Foster Publishing, including Color Mixing Recipes, which he originally conceptualized, designed, and illustrated himself.

Award-winning artist Ken Goldman is an internationally known artist, author, teacher, and art juror. His work has been exhibited in group and solo exhibitions in Holland; Paris; Mexico; New York; Boston; Washington, D.C.; the Oceanside Museum of Art: 100 Artists, 100 Years 1915-2015; the International Fabriano en Acquarello 2015 (Italy); China's Shenzhen International Biennial 2013-2014; and the Shanghai International Biennial 2012-2013. He currently serves as president of the National Watercolor Society. Visit www.goldmanfineart.com.

Walter T. Foster was born in Woodland Park, Colorado, in 1891. In his younger years, he worked as a sign painter and a hog medicine salesman. He also performed in a singing and vaudeville act. Walter invented the first postage-stamp vending machine and drew political caricatures for several large newspapers. He's well known as an accomplished artist, art instructor, and art collector. In the 1920s, while running his own advertising agency and instructing young artists, Walter began writing self-help art instruction books. The books were first produced in his home in Laguna Beach, California, where he wrote, illustrated, and printed them himself. In the 1960s, as the product line grew, he moved the operation to a commercial facility, which allowed him to expand the company and achieve worldwide distribution. Walter passed away in 1981, but he is fondly remembered for his warmth, dedication, and unique instruction books.