Top of page

Category: Preservation

Two people carefully adjust the position of a shallow box holding a portrait of George Washington under the lens of a microscope.

Exceptional! Identifying Artist Materials in an Early Portrait of George Washington

Posted by: Megan Zins

In celebration of Washington’s birthday this year, learn about a special portrait of the nation’s first president. Scientists in the Library’s Preservation Research and Testing Division, working with a visiting researcher, recently discovered the use of a unique artist material in the drawing, making it a truly exceptional portrait of President George Washington.

Bringing Two Georges Together: A Behind-the-Scenes Look at Preparing the Exhibition

Posted by: Amelia Parks

Creating an exhibition requires far more than choosing and displaying collection items. Go behind the scenes and hear from preservation staff who helped to put together the Two Georges exhibition at the Library of Congress. This blog highlights work the public rarely notices such as materials testing, object support, and environmental monitoring.

Close up of a document showing handwriting added to the printed document reading 'shall be appointed an elector.'

Clues from the Past: Closely Examining Historic Documents

Posted by: Chloe Genter

When preparing items for conservation, identifying how an object was created is the first step in understanding its context and manufacture. By looking carefully at certain characteristics, like ink color and line quality, contextualizing the items in front of us is possible. This blog post describes these qualities and situates them within a brief context of writing implement evolution.

A woman places a pigment chart under a camera for imaging.

Reading the Rainbow: How Chemistry Helps Identify Pigments

Posted by: Meghan Hill

The following is a guest post by Anna Darden, intern in the Preservation Research & Testing Division (PRTD). Not so long ago, LeVar Burton graced TV screens on Reading Rainbow with his emphasis on building reading comprehension and instilling a life-long love of reading for me and others in my generation. Reading is usually reserved …

125th anniversary celebration comes up to date on life in the binding office.

125 years of binding, Part Four: Madison and the Digital Age

Posted by: K.F. Shovlin

As we celebrate 125 years of binding at the Library of Congress, our final chapter in this blog series looks at the changes in binding and the industry with the rise of the digital age. The past 40 plus years brought the Binding Office to a new home, created a new partner, and finally, gave it a new name that is more forward looking than past. With quotes from the people that were there and made it happen, we share this retrospective conclusion, on the 125th anniversary of the office first opening its doors.

I Got 99 Ptolemies But a 1477 Ain’t One: A Journey Through Bookbinding History

Posted by: Amelia Parks

It’s not very often that you have the chance to look at 99 copies of the same book. However, among the Library’s vast collections are an extraordinary 99 copies of Ptolemy’s Geographia, divided between the Geography and Map Division and Rare Book and Special Collections. Book conservators in the Library’s Conservation Division, undertook a survey of every one of these 99 copies of Geographia, and found some fascinating things that provide context for the rich history of book binding and manuscript arts.