When restoring an antiquarian (or a modern damaged book), the primary goal is to return the volume as closely as possible to its original condition. Modern restoration and preservation techniques are minimally invasive, retaining as much of the original materials and workmanship as possible. The final outcome should be a book that can be handled with confidence, retains the look and integrity of the original, and is protected from further damage and deterioration.
More about book restoration...
do I decide if my book should be restored? (Decisions)
much will it cost to restore my book? (Cost)
do I determine the market value of my book? (Market Value)