Below is the list of books that I find inspiring and useful in developing my painting skill on Non Metallic Metal, skin tone, and color composition. Please note that some of the books are for mature readers only.

Hard Curves
By: Julie Bell

Soft As Steel
By: Julie Bell

Offerings
By: Brom

Darkwerks
By: Brom

TESTAMENT: The Life and Art of Frank Frazetta
Edited by Arnie Fenner and Cathy Fenner

Intron Depot 1, 2, 3
By: Masamune Shirow
*Contain nudity*

Metallicon
By: Hajime Sorayama
*Mature readers*

Malefic
By: Luis Royo
*Mature readers*