Sith Book of Offerings and Rituals
From Wookieepedia, the Star Wars wiki.
The Sith Book of Offerings and Rituals was a publication purporting to deal with the religious rites of the Sith Order. While visiting seedy Atzerri during the Black Fleet Crisis in 16 ABY, Luke Skywalker came across a satellite store of the Galactic Archives at the Traders Plaza which promoted the book in one of its adverts. However, the Jedi dismissed the book along with the others advertised as frauds.
