Assuming i guessed correctly are you trying to define the gutter width or gutter position.
Book gutter indesign.
If so i d very strongly recommend that you double check your page requirements for ingramspark closely because i believe you re built to lose and lose big if you submit this.
Adobe indesign s text frames can flow text from one column to another within a multi column frame.
To set or change the number of columns in an individual text frame and establish the gutter spacing between these columns open the object menu and choose text frame options.
A gutter is the section of the page that leads into the binding of perfect bound books and hard cover books.
I just caught your question and i have a couple more.
This process will cause a curve of the pages coming from the spine when the book is open.
Some people use gutter to describe the space between 2 columns other use it to describe the space between two pages.
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.
Are you laying out reader spreads e g.
Indesign uses the first definition in margins and columns so i m going to guess that is what your question is about.
Pgs 2 3 4 5 6 7 etc in a single two column page.
Is your indesign page size really set for 11 25 x 8 75 landscape.
A good initial approach is to have left and right outer margins equal and have a sum of inner margins when viewed in an opened book so account for gutter equal in width to an outer margin.