The Library of Congress is the largest library in the world with over 173 million cataloged items. For the past decade, digitization of this enormous collection has increased exponentially. The Preservation Services Division (PSD) is responsible for a huge portion of this effort, managing contracts for the digitization of millions of pages of books, newspapers, and microfilm frames each year. All of this imaging results in a lot of data, hundreds of millions of files, and this is how we manage that data.
Staff at the Library of Congress love to showcase the collections with the public. As exhibitions are being planned , the Conservation Division (CD) and Preservation Research and Testing Division (PRTD) have been collaborating to assess the items selected for display. As part of this process, staff in CD typically review every item in an exhibition to determine how to safely display it. This review includes evaluating possible treatments, the kinds of mounts or cradles for display, and various ways that lighting might affect the item.
This is a guest post written by Meghan Wilson, a Preservation Science Specialist in the Preservation Researching and Testing Division. Meghan runs PRTD’s multispectral imaging system, often unveiling the invisible within the Library’s collection. Amidst the Revolution, Alexander Hamilton sought solace in his love for Elizabeth Schuyler. Their correspondence is filled with moments of fondness, …
This is a guest post by Cindy Connelly Ryan, a Preservation Science Specialist in the Preservation Research and Testing Division (PRTD). Her research areas include the light sensitivity of inks, dyes and organic colorants, deterioration and stabilization of verdigris and iron gall ink, technical study of collection items, and re-creating obsolete historic recipes for artists’ …
This is a guest post written by Peter Alyea. Peter is a Preservation Science Specialist in the Research and Testing Division of the Library of Congress and has been working with Lawrence Berkeley National Laboratory on imaging recorded sound collections for preservation and access since the inception of the IRENE project. Although making audio recordings …
I’m a research scientist and I’ve worked in a laser, microscopy, or spectroscopy laboratory (and sometimes a lovely combination of the three) for the past seventeen years. The last five of those years I’ve been lucky to call myself a Chemist at the Library of Congress, working in the optical properties lab of the Preservation …
