DePaul's rare books documentation project

The only known catalogued copy held in an institution of the book "Oratoriae partitiones," which was published in Paris in 1539, is located in the Special Collections and Archives room of DePaul's John T. Richardson Library. (DePaul University/Jeff Carrion)

One of 12 rare books in the Special Collections and Archives room of DePaul's John T. Richardson Library that have received recognition from an international project "Preserving the World's Rarest Books." All 12 books have five or less known catalogued copies in libraries around the world. (DePaul University/Jeff Carrion)

Six of 12 rare books in the Special Collections and Archives room of DePaul's John T. Richardson Library that have received recognition from an international project "Preserving the World's Rarest Books." All 12 books have five or less known catalogued copies in libraries around the world. (DePaul University/Jeff Carrion)

One of 12 rare books in the Special Collections and Archives room of DePaul's John T. Richardson Library that have received recognition from an international project "Preserving the World's Rarest Books." All 12 books have five or less known catalogued copies in libraries around the world. (DePaul University/Jeff Carrion)

One of two known catalogued copies held in an institution of the book "In divi Pauli epistolas omneis interpretatio, ad vetustissimorum exemplarium fidem quam diligentissime recognita," which was published in Paris in 1550. It's located in the Special Collections and Archives room of DePaul's John T. Richardson Library. (DePaul University/Jeff Carrion)