When you receive lots of block from different people, always, a few don't have a true 1/4" seam.......so the easiest way to fix that is to frame your offending blocks out with a strip of fabric that goes with your other fabrics. You have the ability to turn your blocks into larger blocks without destroying the design. This book should have made it clear they were talking about finished sizes vs unfinished sizes. My best guess is they did not have a good proof reader.