Coloring books, though, are by far the most popular kids’ activity for grown-ups. And it’s not hard to see why.
Just imagine your favorite coloring book as a kid, only updated to reflect your much-improved motor skills and worldliness. Wouldn’t it be nice to take an hour with a cup of coffee and get lost in a sea of possibility and imagination?
These books are selling at breakneck pace. Publishers are even having trouble keeping them in stock.