1- Artbook by Otto Schimidt
Great design, elegant woman et gorgeous colors it's a hard to miss
https://www.kickstarter.com/projects/muntyan/artbook-by-otto-schmidt

2- The Art of Titanfall
Great design who got really they're own flavor and it's nice to see a different influence to mech design.

3-The Art of Castlevania Lords of Shadows
Increadibly nice series of remake the art quality if above expectation, definitly one of my favorite books.