Question

Difference between mirror margin and gutter margin

Answer 1

Answer:

In a facing pages layout (Word refers to this type of layout as "mirror margins"), the gutter margin is on the very inside of both pages. Answer: Gutter Margins is the extra space that is added to your document's existing margins to allow for the document's binding.

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Answer 2

Answer:

You can set top, bottom, inside (towards the binding) and outside (left and right) margins when you have mirror margins selected. You can also specify a gutter margin, which is the amount of space added to the inside margins to allow for binding of the final book