It seems like adults just rediscovered coloring books over the last year or so. I think lots of adults are just not wanting to admit that they were coloring in the kiddy books before all sorts of adult coloring books landed. If you like to color and like Doctor Who, this book is for you.
The Doctor Who Coloring Book has 96 pages, packed with line art images from the franchise. You can color the Doctor, the TARDIS, several companions, and some of the cool villains that the series has seen. The book even has Weeping Angels inside, though I’m not sure how you can color those without blinking at least once.
You can get the 2016 edition now at ThinkGeek for $14.99(USD). That’s a lot more than a kids coloring book would cost you, but hey.