Tip-In Page

A tip-in page is a sheet bound back into a book after it’s fully constructed. It serves as a fix, for pages that planned or unplanned that didn’t make it into the book block but need to be added later. It can be a single page, a fold-out, or even in different paper stock. It could be tipped in anywhere, but it’s often glued at the beginning of the book block or between signatures where there’s a larger gap.