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 ...

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 ...

When creating a variety of coloring patterns to be helpful in design, illustration, fashion etc. and using the created color scheme, it is possible to display up to the sample "What kind of design can ...

Coloring books for adults are red hot in 2015, selling millions of copies and prompting publishers of all sizes to get in on the game. Below are select coloring books for adults publishing between ...