The Ulpian Library continued in the tradition of Roman imperial libraries with Latin and Greek collections housed separately. In this library, they faced one another across a small colonnaded courtyard that enclosed the
Column of Trajan. The library was a two level structure with high vaulted ceilings to take advantage of the natural lighting. The interior walls were divided into bays by columns "set opposite pilasters that framed the niches which held the books and scrolls. There were three steps between the columns that enabled "access to a walkway in front of the bookcases." At the other end of the hall were recesses for a statue on each level, presumably of Trajan and possibly of Minerva. The niches (seven total on each wall) containing recessed wooden bookcases located in both walls running the length of the library along with four others running across the back wall stored the scrolls. Estimates on the amount of scrolls held are "approximately ten thousand" for both Latin and Greek libraries. "In addition, there were archival materials, such as praetorian edicts and senatorial decrees, as well as Caesar's autobiography and Trajan's commentaries on the
Dacian Wars, of which
now only a few words survive." The space itself was designed to be aesthetically pleasing with desks (
plutei) and the books out of sight on shelves and intended for reading, but was not designed with the growth of the collection in mind. ==Reconstruction==