Webthe most common trim size for books in the u. s.
Is 6 x 9 (152. 4 x 228. 6 mm) and is a regular trim size.
When setting up your book, this is the default in the print options section of the content tab.
Webthings to consider when formatting include:
Trim size, margins, and cover design.
During the upload, you’ll be able to preview your book and fix any errors before publishing.