Rudi, Robo Robo & Rudi – Cute Robot Coloring Book for Kids & Adults: Relaxing, Adenturous, Fun: 50 Unique Robot Coloring Pages Friendly Kawaii Robots, Space ... Perfect for Boys, Girls & Creative Adul

Imhof, Andreas Stingray Coloring Book: 50 Cute and Fun Ocean Animal Illustrations: Playful and Relaxing Underwater Coloring for Kids and Adults

Club, Chibi Coloring Simple Things: Super Cute and Easy Coloring Book for Adults and Kids – 50 Bold and Relaxing Designs with Animals, Food, Flowers, Cozy Objects, and ... and Fun (Bold & Simple Coloring for All Ages)

Press, HueStroke Cat Moment: Meow Life coloring Book: A Cute and Relaxing Coloring Pages for Adults and Kids – 50 Fun and Easy Designs for Stress Relief and Mindful Relaxation (Relaxing Moments Series)

Club, Chibi Coloring Simple Flowers: Super Cute and Easy Flower Coloring Book for Adults and Kids – 50 Bold and Relaxing Designs with Roses, Sunflowers, Tulips, Bouquets, ... and Fun (Bold & Simple Coloring for All Ages)

Nook Co., The Coloring Sweet Critter Cupcakes Coloring Book: 50 Cute and Easy Animal Illustrations with Desserts: A Fun, Relaxing Book for Kids, Teens, and Adults

Coloring, Aura Cute Kawaii Creatures: Over 50 Easy Coloring Pages for Kids and Adults Cute Animals, Tasty Snacks & Adorable Supplies – Relaxing and Fun Coloring Book