The artwork needs to be within: 13-15/16” (13.938”) wide x 6-1/8” (6.125”) high.
The artwork background (overall document size) needs to be: 14-7/16” (14.438”) wide x 6-5/8” (6.625”) high. This is for the bleed.
The artwork for the spine needs to be within a 1/2” wide x 6.125” high with a 1/4” roll on each side.