{
  "type": "book",
  "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": "Relaks w 90 sekund",
  "subtitle": null,
  "slug": "relaks-w-90-sekund",
  "url": "https://www.kolczanksiazek.pl/rolf-herkert/relaks-w-90-sekund",
  "json": "https://www.kolczanksiazek.pl/rolf-herkert/relaks-w-90-sekund.json",
  "markdown": "https://www.kolczanksiazek.pl/rolf-herkert/relaks-w-90-sekund.md",
  "authors": [
    {
      "name": "Rolf Herkert",
      "slug": "rolf-herkert",
      "url": "https://www.kolczanksiazek.pl/rolf-herkert"
    }
  ],
  "language": "pl_PL",
  "original_title": null,
  "original_language": null,
  "first_published": "2009-03-25",
  "genres": [],
  "series": [],
  "cover": "https://quivercdn.com/covers/kos/rolf-herkert/relaks-w-90-sekund_8-386-75705-1-8b39be05.jpg?v=2026-08-26%2021%3A13%3A05",
  "description": "Oto książka, którą możesz wziąć wszędzie. Zmniejsza napięcie, harmonizuje ciało, umysł i duszę prowadząc do odkrycia drzemiącego w Tobie bogactwa wewnętrznego.",
  "editions": [
    {
      "title": "Relaks w 90 sekund",
      "subtitle": null,
      "url": "https://www.kolczanksiazek.pl/rolf-herkert/relaks-w-90-sekund/8386757051",
      "publisher": "KOS",
      "publisher_series": [],
      "translators": [],
      "medium": "paper",
      "duration_seconds": null,
      "narrators": [],
      "illustrators": [],
      "cover_artists": [],
      "isbn": "8-386-75705-1",
      "pages": 220,
      "published": "2009-03-25",
      "language": "pl_PL",
      "cover": "https://quivercdn.com/covers/kos/rolf-herkert/relaks-w-90-sekund_8-386-75705-1-8b39be05.jpg?v=2026-08-26%2021%3A13%3A05"
    }
  ],
  "other_languages": [],
  "characters": [],
  "chapters": []
}