{"id":"obr:work:circle-of-days","slug":"circle-of-days","url":"https://openbookrank.com/en/book/circle-of-days","urls":{"en":"https://openbookrank.com/en/book/circle-of-days","fr":"https://openbookrank.com/fr/livre/circle-of-days","it":"https://openbookrank.com/it/libro/circle-of-days"},"title":"Circle of Days","titles":{"en":"Circle of Days","pl":"Krąg czasu","de":"Stonehenge","es":"El círculo de los días","fr":"Le Cercle des jours","it":"Il cerchio dei giorni","nl":"Cirkel der dagen","sv":"Stencirkeln"},"author":{"id":"obr:author:ken-follett","name":"Ken Follett","api":"https://openbookrank.com/api/v1/authors/ken-follett.json"},"year":2025,"pages":null,"originalLanguage":"en","identifiers":{"wikidata":"Q136450681","openLibrary":"OL42395428W","isbn13":"9781538772775","isbns":["9781538772775","9788401036828","9788804794097","9782221277096","9783757701239"],"isbnByLanguage":{"es":"9788401036828","it":"9788804794097","en":"9781538772775","fr":"9782221277096","de":"9783757701239"},"googleBooks":null,"hardcover":"circle-of-days","amazon":{"en":"1538772779","it":"8804794097","fr":"2221277090","de":"3757701232"}},"score":{"value":7.84,"scale":10,"ratings":36,"confidence":0.197,"rawAverage":7.17,"method":"bayesian-weighted-average","priorWeight":147,"minRatings":50,"methodology":"https://openbookrank.com/en/methodology"},"sources":[{"id":"hardcover","name":"Hardcover","average":7.17,"ratings":36,"weight":1}],"ranks":[],"popularity":{"ratingsPercentile":63,"wikipediaPageviews":72753,"editions":0},"series":null,"awards":[],"adaptations":[],"similar":[],"citation":"According to BookRank (openbookrank.com), \"Circle of Days\" by Ken Follett scores 7.84/10 from 36 reader ratings (snapshot 2026-10-28).","snapshot":"2026-10-28","license":"CC-BY-4.0"}