Outside the Lines is an amazing collection of illustrations by some of our favorite contemporary artists - a visual treat no matter your age - much like this colorful celebration.
-Larks Japes
The book's contents surprise and inspire through a unique world of creativity with each page turned.
-Cool Hunting
The collection represents an awesome range of black-and-whites, most of which wouldn't look out of place framed on a wall in a home (with or without children).
-Gizmodo
Coloring books are often thought of as the purview of children, but Outside the Lines shows that coloring can unleash the imagination of child and adult alike.... Outside the Lines is a visual explosion of lines just begging to be filled with color, and is a creative outlet for anyone with an imagination.
-psfk.com
A coloring book that's a cut above.
-Daily Candy
Say whatever you want about being too old for coloring books, but trust us-you're going to want this one.
-Nylon
This charming compendium... is as much an invitation to imagine as it is to admire, to savor, to revel in the beauty and inventiveness of the humble line in its infinitely fanciful permutations.
-Brain Pickings
The designs are mesmerizing, and you have the creative freedom to color them and add whatever feeling you think fits.
-HelloGiggles