After the glue has set, use one of the following methods to mark the width of the joint. This gives the position of the spine inlay on the new spine cloth.     Method 1: Lay the book on the work surface with the new spine cloth against the table, wrong side up. Slip a rod into the joint against the table, press down gently on the joint area. Mark the position where the shoulder of the text block spine meets the new book cloth. Repeat this…