The National Archives is brimming with historical documents written in cursive, including some that date back more than 200 years. But these texts can be difficult to read and understand— particularly for Americans who never learned cursive in school.

The National Archives is looking for volunteers with an increasingly rare skill: Reading cursive. You can sign up online.

Reading cursive is a superpower,” Suzanne Isaacs, a community manager with the National Archives Catalog in Washington, DC, told USA TODAY.

The National Archives needs help from people with a special set of skills–reading cursive. The archival bureau is seeking volunteer citizen archivists to help them classify and/or transcribe more than 200 years worth of hand-written historical documents. Most of these are from the Revolutionary War-era, known for looped and flowing penmanship .