William F Powell is an internationally recognised artist and one of America's foremost colourists. A native of Huntingdon, West Virginia, Bill studied at the Art Student's Career School in New York, Harrow Technical College in Harrow in the UK and the Louvre Free School of Art in Paris. He has been professionally involved in fine art, commercial art and technical illustrating for more than 35 years. Many of his pieces have been reproduced as prints and collector's plates. Bill has written and illustrated 13 instructional art books for Walter Foster publishing, and is the creator of the Colour Mixing Recipe Cards. He has experience as an art instructor in a variety of mediums and has both conducted workshops and produced instructional videos. Bill holds awards for his technical art, which has been used for major projects such as space programmes and environmental studies.