Coloring books for adults have been called “stress relievers” and I think that’s true. I spend at least an hour coloring every day after I finish my work. It helps me to relax. Triangles should provide a lot of relaxation time as you have so many color choices to make. As you see on the cover, I’ve done some of these illustrations in monochromatic hues (like all shades of blue), and still others with lots of different colors. Each of the designs are made up entirely of triangles. Where appropriate you will find shading in the illustrations to guide you in your color choices. I like to frame and hang some of my better coloring efforts. If you have modern or eclectic décor they’ll fit right in.