WALTER FOSTER CREATIVE BOOKS-Color Mixing Recipes: For Oil & Acrylic. This book has mixing recipes for more than 450 color combinations. The plastic Color Mixing Grid (included) ensures accurate paint measurements. Also includes instructions in color theory; color value mixing; complementary colors; graying color naturally; and mixing flesh and portrait colors. Author: William F. Powell. Hardcover; spiral bound; 47 pages. Published 2012. Imported.