[@PrivateVentures]

Oh yes, especially anything that predates the Progenitors! Those books would be viewed as dangerous, borderline sacrilege to some.  As a matter of fact, the Tacuit Autem burn any books that they find that predate the Progenitors. (The Tacuit Autem are basically tacit - hehe - supporters of not speaking at all. They're colossal pussies, for lack of more eloquent phrasing.) Reading provokes discussion, which would be taboo to them.