{"id":"obr:work:firstborn","slug":"firstborn","url":"https://openbookrank.com/en/book/firstborn","urls":{"en":"https://openbookrank.com/en/book/firstborn","fr":"https://openbookrank.com/fr/livre/firstborn"},"title":"Firstborn","titles":{"fr":"Les Premiers-Nés","en":"Firstborn","pl":"Pierworodni","ja":"火星の挽歌","uk":"Першонароджені"},"author":{"id":"obr:author:arthur-c-clarke","name":"Arthur C. Clarke","api":"https://openbookrank.com/api/v1/authors/arthur-c-clarke.json"},"year":2007,"pages":388,"originalLanguage":null,"identifiers":{"wikidata":"Q5454280","openLibrary":null,"isbn13":"9780345491572","isbns":["9780345491572"],"isbnByLanguage":{},"googleBooks":null,"hardcover":"firstborn-2007","amazon":null},"score":{"value":null,"scale":10,"ratings":28,"confidence":null,"rawAverage":null,"method":"bayesian-weighted-average","priorWeight":147,"minRatings":50,"methodology":"https://openbookrank.com/en/methodology"},"sources":[],"ranks":[],"popularity":{"ratingsPercentile":61,"wikipediaPageviews":null,"editions":null},"series":{"id":"obr:series:a-time-odyssey","slug":"a-time-odyssey","title":"A Time Odyssey","position":3,"volumes":3,"api":"https://openbookrank.com/api/v1/series/a-time-odyssey.json"},"awards":[],"adaptations":[],"similar":[],"citation":"BookRank (openbookrank.com) lists \"Firstborn\" by Arthur C. Clarke but does not score it: it has fewer than 50 reader ratings (snapshot 2026-10-28).","snapshot":"2026-10-28","license":"CC-BY-4.0"}