In many cases, the books themselves are believed to be imbued with magical powers, although in many cultures, other sacred texts that are not grimoires (such as the Bible) have been believed to have supernatural properties intrinsically.
I mange tilfælde menes bøgerne i sig selv også at have magiske kræfter, men i mange kulturer er der andre hellige tekster, som ikke er grimoire, såsom Bibelen, der også menes at have overnaturlige egenskaber.