The Tapeno Library was located in the Historical District of Estalle Island on Procopia in the Tapani sector. It contain tens of thousands of books, scrolls, and mundane holocrons as well as an extensive computer database.

The documents within the Tapeno Library tell the collective history of the Tapani sector over almost seven millennia with very few omissions. Over the centuries the staff have been very protective of the historical records and therefore the events described have been relatively free of politically motivated re-writes of Tapani History.

The bloodlines of known Pelagian Jedi disappeared from the records during the rise of the New Order. It was not known whether this was done by the Empire, one of House Pelagia's noble enemies or by a Pelagian agent seeking to protect house members who escaped the initial persecution.