Using InDesign, I formatted one of my books as an 8x10, and although I placed the headers slightly above the safe zone and far from the bleed and trim lines, once printed by Lightning Source, the header was way too close to the final trim. I also noticed that the final trim size for my ARC was not exactly 8x10 but a tad smaller.
My question is... should I set my page size to 8.25 x 10.25 without adding a visual bleed? If so, what would be the correct settings?