A witch’s most prized possession! All your secrets, spells, recipies for herbal practices, correspondances for colors & stones, instructions for medicinal herbal products, etc etc etc!
Your Book of Shadows is yours! This is where I write down anything pertaining to anything Witchy that you think will be needed for future use. Over the year’s you will fill them up with information and start new ones. If you are a beginner to Magick & Spellcasting I would recommend starting off with 2 books, you have the opportunity to start off organized so that 2 years from now you aren’t thumbing through 5 books ( because if you are anything like me I collected all kinds of information, not just from the internet but books and other witches you meet on sites like Facebook ) to find something that you wrote down a long time ago. I would use my Book of Shadows for writing spells, incantations~things like that, and the 2nd book for correspondences with herbs, stones, essential oils, colors, etc.
I personally even had to take it a step further and have a book just for herbs~information on them, their Magickal uses as well as their Medicinal uses. I study Herbology through Sacred Mists Online College, so I have a lot of content just on herbs.