An Open Invitation to: Pennsylvania's Rare Collections Library.

The article focuses on the invitation to researchers to visit the Rare Collections Library at the State Library of Pennsylvania in celebration of the National Preservation Week on May 9-15, 2010 in Pennsylvania. The National Preservation Week provides opportunity for state library to share the preservation of collections. Moreover, it will provide information on how paper ages through the updated Pennsylvania Study, an Institute of Museum and Library Services (IMLS) National Leadership Grant.