In a book of this size i would usually recommend minimum 75 margins and a little more on the gutter binding side.
Standard gutter size for perfect bound book.
Therefore there must be an extra 1 4 1 2 of safety margin space on the side of the page where the gutter spine will be.
However an appointment diary is quite different from a novel or nonfiction book and i would probably reduce the margins to about 5 again with slightly more on the gutter side to compensate for the curve of the binding.
Depending on the size of the book the gutter can be anywhere from 1 4 1 2.
The size of your book is naturally important for the context and market that you wish to sell into.
Gutter width can take up 1 4 to 1 2 from the page.
Generally speaking 0 5 inches for your gutter margin is recommended for most books.
That is what you see in the photo.
There is unfortunately nothing in the word ui that allows you to do this automatically but it can be done.
Novel 203mm x 127mm standard 197mm x 132mm demy 216mm x 138mm us royal 229mm x 152mm royal 234mm x 156mm a5 210mm x 148mm a4.
An example of a perfect bound book gutter can be seen below.
Content that goes across two pages are known as spreads.
In order to allow for binding you need to have 1 25 at the top of the recto odd pages which will be the left or inside edge and 1 25 at the bottom of the verso even pages.
We therefore pride ourselves on a variety of industry sizes as well doing custom sizes for you.
This particular book happened to be fairly thick 356 pages so i set the gutter to 0 3 inches.
So if you re doing a physical book make sure you understand what a gutter is and that you set it up.