Used lithography

Figopedia by Jérémie B. Teboul
Angel Giraldez Masterclass 1
Angel Giraldez Masterclass 2
In Combat by MIG
In Combat 2 by MIG
MIG F.A.Q. 1
MIG F.A.Q. 2
Hobbyworld SciFi Scale 2
Hobbyworld SciFi Scale 3
Hobbyworld SciFi Scale 4
Hobbyworld Mecha Meka Robot
Painting Guide J.L. Lopez
Scale75 Steampunk
Gundam Scratch Build Manual 2
Andrea Miniatures F.A.Q. Miniatures
AK Flesh&Skin