Design Originals-Color This! Brain Boosting Designs. Packed with exquisite drawings that you can use to engage your mind and access your inner wisdom. Coloring has been shown to improve mood, sharpen concentration, and enhance cognitive performance. Inside you will find dozens of illustrations packed with this brain-boosting power, ready to color with pencils, markers, pens, gel pens, or watercolors. Artist: Ben Kwok and Kathryn Erney. Softcover, 80 pages. Published Year: 2016. ISBN 978-1-4972-0170-5. Made in USA.