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14. Stack your covers and signatures, making sure they’re in the proper orientation and page order. Take a piece of heavy thread (we used cooking twine) and wrap it around the stack lengthwise eight times (the number of signatures plus the covers) to determine the thread’s length. Cut it and thread a needle.
15. Take your cover and the first signature, and begin sewing from inside the fold of the first signature through the bottom hole, leaving a tail of about two inches. Wrap around the cover and sew through the bottom hole (fig. L).