Artist and graphic designer Valentina Harper is the author of the best-selling Creative Coloring series from Fox Chapel Publishing. Her original prints, paintings, and drawings can be found in licensed consumer products, commissioned works, and her Etsy.com store. Valentina uses black ink and other mediums to create flowing, intricate, and highly detailed patterns.

Professional artist Thaneeya McArdle is the author of more than 30 bestselling coloring books from Design Originals. Thaneeya creates colorful art in a variety of styles, ranging from abstraction to photorealism (with a special focus on creating vibrantly detailed art). Her artwork hangs in private collections around the world, and can also be purchased on t-shirts, puzzles, jewelry, coloring books, and more. Thaneeya shares her love of art at her popular art instruction site, www.Art-is-Fun.com, with fun lessons and detailed information on drawing, painting and mixed media.