The gutter is the amount of the book that you lose to the binding process.
Gutter in book printing.
I haven t used quark for years but yes the master pages would need to be adjusted for the new margins but heck it s a lot easier to fix a few masters than to fix every page in the book manually right.
But in addition to that margin you also want a gutter.
Gutter margin margins are the blank spaces around the type area on a book page but the inside margin has the special name gutter and it is always the margin on the bound edge of the book page.
This process will cause a curve of the pages coming from the spine when the book is open.
A gutter is the section of the page that leads into the binding of perfect bound books and hard cover books.
Keep that in mind when laying out your book page.
For most books an additional 0 2 or 0 3 inches on the inside edge of the page is plenty to create a gutter.
Sj a book with a gutter margin of 167 if that s what you mean would be almost unreadable and that s why i recommend a minimum gutter margin of 75 in most cases.
In page layout the gutter is a slightly larger margin added to the inside edge of the page.
So yes you have a half inch margin on the left and the right to have white space to keep your book easy to read.
The gutter is the space between each copy of your postcard on the press sheet.
So nothing is lost when the book is held open.
When you re looking at a book page spread you ll have two gutters together doubling the apparent space.
The gutter goes on the left side of right hand pages and on the right side of left hand pages.
For example if you are printing a postcard multiple copies of the postcard will fit on a single press sheet.