{"id":"obr:work:x-stands-for-unknown","slug":"x-stands-for-unknown","url":"https://openbookrank.com/en/book/x-stands-for-unknown","urls":{"en":"https://openbookrank.com/en/book/x-stands-for-unknown","fr":"https://openbookrank.com/fr/livre/x-stands-for-unknown"},"title":"X Stands for Unknown","titles":{"es":"\"X\" representa lo desconocido","it":"L'incognito è x","sv":"X står för okänd","en":"X Stands for Unknown","fr":"X comme inconnu"},"author":{"id":"obr:author:isaac-asimov","name":"Isaac Asimov","api":"https://openbookrank.com/api/v1/authors/isaac-asimov.json"},"year":1984,"pages":218,"originalLanguage":null,"identifiers":{"wikidata":"Q260711","openLibrary":null,"isbn13":"9780385189156","isbns":["9780385189156"],"isbnByLanguage":{},"googleBooks":null,"hardcover":"x-stands-for-unknown","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:the-magazine-of-fantasy-science-fiction","slug":"the-magazine-of-fantasy-science-fiction","title":"The Magazine of Fantasy & Science Fiction","position":null,"volumes":21,"api":"https://openbookrank.com/api/v1/series/the-magazine-of-fantasy-science-fiction.json"},"awards":[],"adaptations":[],"similar":[],"citation":"BookRank (openbookrank.com) lists \"X Stands for Unknown\" by Isaac Asimov 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"}