Margins for gutter of perfect bound pocketbook
Could anyone offer some advice? I am working on an Indesign document to create a 48 page pocketbook. I have set the margin in the gutter as 1.2cm, but I'm worried that this will be reduced by the gluing of the perfect bind. Does Lulu adjust for this, or should I increase the gutter margin for the inside pages by approx 0.5cm?