For over 40 years, Venezuelan architect Rafael Araujo has been drawing the most beautiful illustrations of nature, entirely by hand. At an old drafting table he adeptly renders the mathematical ...

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Adults really enjoying coloring stuff in these days. But if you're looking for something a little more interesting than geometric patterns or bouquets of flowers. Titan is releasing this, Alien: The ...

Those of us who grew up coloring remember the cardinal rule: stay inside the lines. But those who pick up the Patterns of the Universe coloring book have to stay in the sines (and cosines and tangents ...

Vic and Joanna King launched a Kickstarter campaign July 1 for their coloring book. The couple passed its $3,000 goal thanks to nearly 70 backers who contributed donations. The book will publish this ...

This piece was updated on Sept. 2, 2018. Crayons, of course. Scented markers. Colored pencils, pre-sharpened. And coloring books by the jillions. Why do people like coloring so much? For grownups, I ...