{
  "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": "Kotolotki",
  "slug": "kotolotki",
  "url": "https://www.kolczanksiazek.pl/ursula-k-le-guin/seria/kotolotki",
  "json": "https://www.kolczanksiazek.pl/ursula-k-le-guin/seria/kotolotki.json",
  "markdown": "https://www.kolczanksiazek.pl/ursula-k-le-guin/seria/kotolotki.md",
  "author": {
    "name": "Ursula K. Le Guin",
    "slug": "ursula-k-le-guin",
    "url": "https://www.kolczanksiazek.pl/ursula-k-le-guin"
  },
  "books_in_catalog": 2,
  "volumes_total": 2,
  "published": "2001–2026",
  "missing_volumes": [],
  "books": [
    {
      "volume": 1,
      "title": "Kotolotki",
      "subtitle": null,
      "slug": "kotolotki",
      "url": "https://www.kolczanksiazek.pl/ursula-k-le-guin/kotolotki",
      "publisher": "Prószyński i S-ka",
      "published": "2026-01-01",
      "isbn": "978-83-8444-003-2"
    },
    {
      "volume": 2,
      "title": "Kotolotki z wizytą u mamy",
      "subtitle": null,
      "slug": "kotolotki-z-wizyta-u-mamy",
      "url": "https://www.kolczanksiazek.pl/ursula-k-le-guin/kotolotki-z-wizyta-u-mamy",
      "publisher": "Prószyński i S-ka",
      "published": "2001-01-01",
      "isbn": "8-372-55962-7"
    }
  ]
}