{
  "type": "series",
  "site": {
    "name": "Kołczan Książek",
    "language": "pl-PL",
    "url": "https://www.kolczanksiazek.pl"
  },
  "formats": "Każda podstrona ma dwie wersje z tymi samymi danymi: JSON (adres strony + .json) i markdown (adres strony + .md). Do każdego `url` w tym dokumencie można dopisać .json albo .md.",
  "name": "Harry Potter",
  "slug": "harry-potter",
  "url": "https://www.kolczanksiazek.pl/jk-rowling/seria/harry-potter",
  "json": "https://www.kolczanksiazek.pl/jk-rowling/seria/harry-potter.json",
  "markdown": "https://www.kolczanksiazek.pl/jk-rowling/seria/harry-potter.md",
  "author": {
    "name": "J.K. Rowling",
    "slug": "jk-rowling",
    "url": "https://www.kolczanksiazek.pl/jk-rowling"
  },
  "books_in_catalog": 7,
  "volumes_total": 7,
  "published": "2020–2026",
  "missing_volumes": [],
  "books": [
    {
      "volume": 1,
      "title": "Harry Potter i Kamień Filozoficzny",
      "subtitle": null,
      "slug": "harry-potter-i-kamien-filozoficzny",
      "url": "https://www.kolczanksiazek.pl/jk-rowling/harry-potter-i-kamien-filozoficzny",
      "publisher": "Media Rodzina",
      "published": "2020-01-01",
      "isbn": "978-83-8008-760-6"
    },
    {
      "volume": 2,
      "title": "Harry Potter i Komnata Tajemnic",
      "subtitle": null,
      "slug": "harry-potter-i-komnata-tajemnic",
      "url": "https://www.kolczanksiazek.pl/jk-rowling/harry-potter-i-komnata-tajemnic",
      "publisher": "Media Rodzina",
      "published": "2021-01-01",
      "isbn": "978-83-8008-925-9"
    },
    {
      "volume": 3,
      "title": "Harry Potter i więzień Azkabanu",
      "subtitle": null,
      "slug": "harry-potter-i-wiezien-azkabanu",
      "url": "https://www.kolczanksiazek.pl/jk-rowling/harry-potter-i-wiezien-azkabanu",
      "publisher": "Media Rodzina",
      "published": "2024-02-15",
      "isbn": "978-83-8265-176-8"
    },
    {
      "volume": 4,
      "title": "Harry Potter i Czara Ognia",
      "subtitle": null,
      "slug": "harry-potter-i-czara-ognia",
      "url": "https://www.kolczanksiazek.pl/jk-rowling/harry-potter-i-czara-ognia",
      "publisher": "Media Rodzina",
      "published": "2024-03-13",
      "isbn": "978-83-8265-692-3"
    },
    {
      "volume": 5,
      "title": "Harry Potter i Zakon Feniksa",
      "subtitle": null,
      "slug": "harry-potter-i-zakon-feniksa",
      "url": "https://www.kolczanksiazek.pl/jk-rowling/harry-potter-i-zakon-feniksa",
      "publisher": "Media Rodzina",
      "published": "2026-01-01",
      "isbn": "978-83-8416-093-0"
    },
    {
      "volume": 6,
      "title": "Harry Potter i Książę Półkrwi",
      "subtitle": null,
      "slug": "harry-potter-i-ksiaze-polkrwi",
      "url": "https://www.kolczanksiazek.pl/jk-rowling/harry-potter-i-ksiaze-polkrwi",
      "publisher": "Media Rodzina",
      "published": "2026-10-14",
      "isbn": "978-83-8416-094-7"
    },
    {
      "volume": 7,
      "title": "Harry Potter i Insygnia Śmierci",
      "subtitle": null,
      "slug": "harry-potter-i-insygnia-smierci",
      "url": "https://www.kolczanksiazek.pl/jk-rowling/harry-potter-i-insygnia-smierci",
      "publisher": "Media Rodzina",
      "published": "2026-11-12",
      "isbn": "978-83-8416-095-4"
    }
  ]
}