Grimoire

Grimoires, sometimes called greatbooks, are formal, ordered collections of spells.

Description
Greatbooks tend to be locked, guarded, and hidden, either in a secure cache or in a wizard's abode. Most are composed with gilded ornamentation or inks, and they might even have plates of polished ivory or platinum within them, engraved or stamped with arcane writings. They are usually large and often of unusual proportions (such as very tall for their width), and many have metal-bound corners (ornate protective caps) and chased or relief-carved covers.