Every self respecting Witch should have a "Book of Shadows", put simply a book of spells; but not 'just' spells...The whole point of a Book of Shadows is to express your own feelings about the craft, albeit images (which you can sketch) or spell casing (which you can log).
It's almost like a diary, capturing your own thoughs and feelings...
You can use it to experiment; cast spells outdoors or under a full moon, predict the future with the aid of cards, pendulums or water; note down the results in your Book of Shadows...
This volume could turn out to be your best friend in terms of your beliefs & it pays to invest early...let your imagination explore!
Dalry Witches (2003) (c)