Colorist's Special Effects 2: Step-by-step coloring guides. Improve your skills!

Colorist's Special Effects - color interior: Step by step guides to making your adult coloring pages POP!

Colorist's Special Effects 3: More step-by-step guides & fun, coloring tricks & techniques

The Secrets of Coloring 2: Step-by-Step Tutorials and Tricks of the Trade from a Professional Illustrator (Volume 2) (The Secrets of Coloring Series)

The Secrets of Coloring: Tutorials and Tricks of the Trade from a Professional Illustrator (Volume 1)

Color Workshop: A Step-by-Step Guide to Creating Artistic Effects

Ruby Charm Colors Oceanimaginary: An Adult Coloring Art Journal Special Edition

Light Skin Tone Colored Pencils for Adults - Color Pencils for Portraits and Skintone Artists Pencil

Dark Skin Tone Colored Pencils for Adults - Color Pencils for Portraits and Skintone Artists Pencil

Spirit Animals Coloring Book: Published in Sweden as "Själsfränder"

Colored Pencils For Adults - Black Widow Colored Pencil Set For All Coloring Books - A Unique 24 Piece Blackwood Color Pencil Set - From Medihealth 1