I first heard of the adult coloring book trend from my friend Myke, who described on various podcasts and Slack conversations how coloring mandala-like patterns helps him concentrate and relax while ...

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 ...

I have never changed my mind about anything as quickly or completely as I changed my mind about adult coloring books. I found the trend mostly baffling and maybe a little dumb. But I saw some in a ...

A detail of the Mandelbrot set, a fractal named after Benoit Mandelbrot, the French mathematician who investigated it in the 1970s. If you were to zoom in at any point on the intricate, wiggly line, ...