{"id":"obr:work:life-line","slug":"life-line","url":"https://openbookrank.com/en/book/life-line","urls":{"en":"https://openbookrank.com/en/book/life-line","fr":"https://openbookrank.com/fr/livre/life-line","it":"https://openbookrank.com/it/libro/life-line"},"title":"Life-Line","titles":{"en":"Life-Line","es":"La línea de la vida","uk":"Лінія життя","fr":"Ligne de vie","it":"La linea della vita","ko":"생명선","nl":"Life-Line"},"author":{"id":"obr:author:robert-a-heinlein","name":"Robert A. Heinlein","api":"https://openbookrank.com/api/v1/authors/robert-a-heinlein.json"},"year":1939,"pages":null,"originalLanguage":null,"identifiers":{"wikidata":"Q3240086","openLibrary":null,"isbn13":null,"isbns":[],"isbnByLanguage":{},"googleBooks":null,"hardcover":"life-line","amazon":null},"score":{"value":null,"scale":10,"ratings":1,"confidence":null,"rawAverage":null,"method":"bayesian-weighted-average","priorWeight":147,"minRatings":50,"methodology":"https://openbookrank.com/en/methodology"},"sources":[],"ranks":[],"popularity":{"ratingsPercentile":36,"wikipediaPageviews":null,"editions":null},"series":{"id":"obr:series:future-history","slug":"future-history","title":"Future History","position":null,"volumes":29,"api":"https://openbookrank.com/api/v1/series/future-history.json"},"awards":[],"adaptations":[],"similar":[],"citation":"BookRank (openbookrank.com) lists \"Life-Line\" by Robert A. Heinlein 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"}