NEW YORK | Adult coloring books are giving Harper Lee a run for the money on best-seller lists this summer. Dover Publications has sold more than 3 million adult coloring books with titles like "Fl… ...

100 Mindful Mandalas Coloring Book - $8.99 Anxiety Relief Adult Coloring Book: Over 100 Pages of Mindfulness and anti-stress Coloring To Soothe Anxiety - $5.99 ...