Johanna Basford's intricate hand-drawn coloring books for adults have sold nearly 1.5 million copies worldwide. Courtesy of Johanna Basford/Laurence King Adulthood seems to be having a regressive ...

7. Enchanted Forest: An Inky Quest & Coloring Book Paperback – February 17, 2015 Amazon Buy it for $9.82 ...

Her newest coloring book, "Enchanted Forest," which came out in February, has already sold 226,000 copies.

In fact, there are enough of you out there to have made sellout successes out of not one, but two grown-up coloring books by illustrator Johanna Basford. Her first book, 2013's Secret Garden, sold ...