Dear challenger,
The Art Book of Criminal Dissidia and Criminal Dissidia Deluxe Bundle are available with a 10% discount for the first week; If you purchase the Criminal Dissdia Deluxe Edition (Game & Art Book), you can have an additional 10% discount on top of the base price.
Criminal Dissidia Deluxe Bundle：Game & Criminal Dissidia Art Book
https://store.steampowered.com/bundle/28239/_/
Criminal Dissidia Art Book
https://store.steampowered.com/app/2167370/__Criminal_Dissidia_Art_Book/