It happens to everyone: you look at your finished book fold and spot a single, misaligned page that ruins the smooth curve of the design. Don't panic! You do not need to throw away the book and start over. Most book folding mistakes can be corrected in seconds.
How to Fix a Measurement Error
If you folded a page at the wrong measurements, gently unfold the page, flatten the crease between your fingers, re-measure, and fold it again at the correct marks. Once the book is closed, the old crease line will disappear within the compressed pages.
How to Fix a Skipped Page
If you skipped a page, you don't need to unfold the entire book. You can insert a blank page fold, or slightly adjust the fold on the surrounding pages to blend the design together. Regular MMF is highly forgiving of minor adjustments!