You can activate the review of your Coffee Table Book via "Project" → "Check project" in the top left corner:

This will open the right-hand panel, where an additional section with the following symbol will appear:

Your Coffee Table Book will then be checked for potential errors. In this section, you’ll see a summary, including page numbers. By clicking on an error message, you can open the corresponding double page directly to review and correct it.

Potential sources of error are (non-exhaustive list): 

• Page not visited: You have not yet opened this page, so it likely does not contain any content.
• Empty picture box: A picture box on this page has not been filled.
• Poor-quality photo: A photo on this page has a resolution that is too low for high-quality printing.
• Very poor-quality photo: A photo on this page has a resolution that is far too low for printing.
• Photo/text outside the cropping area: A photo or text box is placed too close to the margin, beyond the cropping area. Some parts may be unintentionally cut off.