The Penguins of Madagascar Coloring Book: Coloring Book for Kids and Adults with Fun, Easy, and Relaxing Coloring Pages, Paperback/Linda Johnson

Penguin Coloring Book for Adults: Stress-relief Coloring Book For Grown-ups, Paperback/Balloon Publishing

Penguin Coloring Book: Adult Coloring Book with Beautiful Penguin Designs - Creative Coloring

Penguin Coloring Book for Adults: Stress-Relief Coloring Book for Grown-Ups, Containing 40 Paisley, Henna and Zentangle Penguin Coloring Pages/Coloring Books Now

Penguin Coloring Book for Adults: A Stress Relief Adult Coloring Book of 40 Penguin Designs in a Variety of Intricate Patterns, Paperback/Adult Coloring World

Ocean Life: Ocean Coloring Books for Adults a Blue Dream Adult Coloring Book Designs (Sharks, Penguins, Crabs, Whales, Dolphins an, Paperback/Adult Coloring Books for Stress Relief

Dido - Adele Geras, editura Penguin Random House

Ocean Coloring Book for Adults: Detailed Designs For Relaxation & Stress Relief; Deep Blue Sea Creatures; Penguins, Seals, Whales, Dolphins, Fish, She, Paperback/Art Therapy Coloring

Penguin Coloring Book for Adults: Penguin Coloring Book Containing Penguins Filled with Intricate and Stress Relieving Patterns, Paperback/The Coloring Book People

Penguin Coloring Book: Adult Coloring Book with Beautiful Penguin Designs, Paperback/Creative Coloring

All adults here - Emma Straub, editura Penguin Books