{
  "type": "edition",
  "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.",
  "title": "Sketchbook",
  "subtitle": null,
  "url": "https://www.kolczanksiazek.pl/zbigniew-kasprzak-kas/sketchbook/9788368097399",
  "publisher": "Ongrys",
  "publisher_series": [],
  "translators": [],
  "medium": "paper",
  "duration_seconds": null,
  "narrators": [],
  "illustrators": [],
  "cover_artists": [],
  "isbn": "978-83-6809-739-9",
  "pages": 294,
  "published": "2025-11-01",
  "language": "pl_PL",
  "cover": "https://quivercdn.com/covers/ongrys/zbigniew-kasprzak-kas/sketchbook_978-83-6809-739-9-bfabe5f8.jpg?v=2026-09-06%2015%3A12%3A11",
  "json": "https://www.kolczanksiazek.pl/zbigniew-kasprzak-kas/sketchbook/9788368097399.json",
  "markdown": "https://www.kolczanksiazek.pl/zbigniew-kasprzak-kas/sketchbook/9788368097399.md",
  "binding": "Softcover",
  "description": "Artbook ze szkicami Zbigniewa Kasprzaka.",
  "book": {
    "title": "Sketchbook",
    "slug": "sketchbook",
    "url": "https://www.kolczanksiazek.pl/zbigniew-kasprzak-kas/sketchbook"
  },
  "authors": [
    {
      "name": "Zbigniew Kasprzak (Kas)",
      "slug": "zbigniew-kasprzak-kas",
      "url": "https://www.kolczanksiazek.pl/zbigniew-kasprzak-kas"
    }
  ]
}