"book of shadows" meaning in English

{
  "forms": [
    {
      "form": "books of shadows",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "books of shadows"
      },
      "expansion": "book of shadows (plural books of shadows)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "Book of Shadows"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Wicca",
          "orig": "en:Wicca",
          "parents": [
            "Paganism",
            "Religion",
            "Occult",
            "Culture",
            "Forteana",
            "Society",
            "Pseudoscience",
            "All topics",
            "Sciences",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2008, Rosemary Guiley, The Encyclopedia of Witches, Witchcraft and Wicca, page 36",
          "text": "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.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Alternative letter-case form of Book of Shadows"
      ],
      "id": "en-book_of_shadows-en-noun-9d7IUcDh",
      "links": [
        [
          "Book of Shadows",
          "Book of Shadows#English"
        ]
      ],
      "raw_glosses": [
        "(uncommon) Alternative letter-case form of Book of Shadows"
      ],
      "tags": [
        "alt-of",
        "uncommon"
      ]
    }
  ],
  "word": "book of shadows"
}

{
  "forms": [
    {
      "form": "books of shadows",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "books of shadows"
      },
      "expansion": "book of shadows (plural books of shadows)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "Book of Shadows"
        }
      ],
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "English terms with quotations",
        "English terms with uncommon senses",
        "Quotation templates to be cleaned",
        "en:Wicca"
      ],
      "examples": [
        {
          "ref": "2008, Rosemary Guiley, The Encyclopedia of Witches, Witchcraft and Wicca, page 36",
          "text": "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.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Alternative letter-case form of Book of Shadows"
      ],
      "links": [
        [
          "Book of Shadows",
          "Book of Shadows#English"
        ]
      ],
      "raw_glosses": [
        "(uncommon) Alternative letter-case form of Book of Shadows"
      ],
      "tags": [
        "alt-of",
        "uncommon"
      ]
    }
  ],
  "word": "book of shadows"
}