Technically, a Grimoire and a Book Of Shadows (BOS) are two different things; although many modern witches use the two terms interchangeably. So lets look at the differences between a Grimoire and a BOS...
A Grimoire is an older term used to define a book of spells, invocations, etc. (Usually ceremonial magic rather than folk magic). Book of Shadows is a term popularized by the Wiccan movement in the twentieth century. I have also been told that a Grimoire is a witch’s working book of spells, where as a BOS is more like a journal of your magical workings.
Whatever you choose to call your magical book, and whatever you choose to write in it is totally up to you (I personally use the terms “Black Book” and “Grimoire” interchangeably. I don’t use term “Book Of Shadows” as it is a Wiccan term and I’m not Wiccan). And whether or not you choose to create or keep a magical book is also entirely up to you. Some witches do, some witches don’t.
❗️And as a side note; you are under no obligation to share or show your Grimoire/BOS/Black Book to anyone. You can share it with others IF YOU SO WISH but ultimately it’s your book and your decision❗️
Picture is not mine; please DM for credit. @the_barefoot_witch
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