In a digital world, paper collections are valued more than ever before.

Historians value not just the content of a document, but the document itself as a link to the past. Researchers reach for paper documents that have yet to be digitized, or the physical objects that stand sometimes defiantly in the face of their digital counterparts.

Whether it is books and manuscripts from great writers, prints and drawings from master artists, or maps by navigators in centuries past, these paper documents are physical link to our collective history.

Preservation Technologies’ Bookkeeper Deacidification Process can increase the life expectancy of these books and records three to five times, allowing them to be used by historians and researchers for centuries into the future.