9 Best Adult Books

1.

Stoner Coloring Book for Adults: The Stoner's Psychedelic Coloring Book

2.

100 Amazing Patterns: An Adult Coloring Book with Fun, Easy, and Relaxing Coloring

3.

100 Animals: An Adult Coloring Book with Lions, Elephants, Owls, Horses, Dogs, Cats

Independently published

4.

F*ck I'm Bored! Activity Book For Adults

5.

Mandala Coloring Book For Adults With Thick Artist Quality Paper, Hardback Covers,

6.

The Fun and Relaxing Adult Activity Book: With Easy Puzzles, Coloring Pages, Writing

CreateSpace Classics

7.

Color & Frame Coloring Book - In the Garden

New Seasons

8.

Disney Dreams Collection Thomas Kinkade Studios Coloring Book

Andrews McMeel Publishing