book of shadows (plural books of shadows)
- (uncommon) Alternative letter-case form of Book of Shadows
2008, Rosemary Guiley, The Encyclopedia of Witches, Witchcraft and Wicca, ISBN 1438126840, page 36:
- The true origins of his book of shadows have been disputed for decades. It is unlikely that such books existed in earlier times, as folk magic generally was passed orally through the generations.