{
  "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": "You won`t get dumber while thinking... 15-17 kyu",
  "subtitle": null,
  "url": "https://www.kolczanksiazek.pl/mateusz-surma/you-wont-get-dumber-while-thinking-15-17-kyu/9788395030017",
  "publisher": "Mateusz Surma",
  "publisher_series": [],
  "translators": [],
  "medium": "paper",
  "duration_seconds": null,
  "narrators": [],
  "illustrators": [],
  "cover_artists": [],
  "isbn": "978-83-9503-001-7",
  "pages": null,
  "published": "2018-01-01",
  "language": "pl_PL",
  "cover": "https://quivercdn.com/covers/mateusz-surma/mateusz-surma/you-wont-get-dumber-while-thinking-15-17-kyu_978-83-9503-001-7.webp?v=2026-08-20%2011%3A39%3A23",
  "json": "https://www.kolczanksiazek.pl/mateusz-surma/you-wont-get-dumber-while-thinking-15-17-kyu/9788395030017.json",
  "markdown": "https://www.kolczanksiazek.pl/mateusz-surma/you-wont-get-dumber-while-thinking-15-17-kyu/9788395030017.md",
  "binding": "Softcover",
  "description": "From a series of 8 pocket books with life and death problems, varying in level from 20 kyu until 3 kyu. Convenient size, easy to carry with you in the pocket of your coat. 2 problems per page, the answers are printed on the back on the page. Compiled by Mateusz Surma 1p, EGF professional. Be aware...",
  "book": {
    "title": "You won`t get dumber while thinking... 15-17 kyu",
    "slug": "you-wont-get-dumber-while-thinking-15-17-kyu",
    "url": "https://www.kolczanksiazek.pl/mateusz-surma/you-wont-get-dumber-while-thinking-15-17-kyu"
  },
  "authors": [
    {
      "name": "Mateusz Surma",
      "slug": "mateusz-surma",
      "url": "https://www.kolczanksiazek.pl/mateusz-surma"
    }
  ]
}