Bleed question for interior margin of interior pages in InDesign
I've been creating books with bleeds for years using InDesign with traditional printers. With Lulu, I'm not sure why I need to add a bleed to the interior margin, ESPECIALLY because my artwork has nothing bleeding to that margin. My pages only bleed top, bottom and outer margins. What will happen if I set it to 0 bleed for the inner and .125" for the other three sides?