{"id":"obr:work:prelude-to-foundation","slug":"prelude-to-foundation","url":"https://openbookrank.com/en/book/prelude-to-foundation","urls":{"en":"https://openbookrank.com/en/book/prelude-to-foundation","pl":"https://openbookrank.com/pl/ksiazka/prelude-to-foundation","es":"https://openbookrank.com/es/libro/prelude-to-foundation","fr":"https://openbookrank.com/fr/livre/prelude-to-foundation","it":"https://openbookrank.com/it/libro/prelude-to-foundation","ja":"https://openbookrank.com/ja/hon/prelude-to-foundation","pt":"https://openbookrank.com/pt/livro/prelude-to-foundation","zh-hant":"https://openbookrank.com/zh-hant/tushu/prelude-to-foundation"},"title":"Prelude to Foundation","titles":{"en":"Prelude to Foundation","pl":"Preludium Fundacji","de":"Die Rettung des Imperiums","es":"Preludio a la Fundación","fr":"Prélude à Fondation","it":"Preludio alla Fondazione","pt":"Prelúdio à Fundação","nl":"Prelude to Foundation","sv":"Preludium till Stiftelsen","uk":"Прелюдія до Фундації","ja":"ファウンデーションへの序曲","zh":"基地前奏","zh-hant":"基地前奏"},"author":{"id":"obr:author:isaac-asimov","name":"Isaac Asimov","api":"https://openbookrank.com/api/v1/authors/isaac-asimov.json"},"year":1988,"pages":445,"originalLanguage":"en","identifiers":{"wikidata":"Q783533","openLibrary":"OL46172W","isbn13":"9785551162872","isbns":["9785551162872","9788076840621","9786586064872","9788484500445","9782724246407","9788804401841","9783453127722"],"isbnByLanguage":{"cs":"9788076840621","es":"9788484500445","fr":"9782724246407","en":"9785551162872","pt":"9786586064872","it":"9788804401841","de":"9783453127722"},"googleBooks":"O1aLYcyIWjEC","hardcover":"prelude-to-foundation","amazon":{"en":"5551162877","es":"8484500446","fr":"2724246403","it":"8804401842","de":"3453127722"}},"score":{"value":7.9,"scale":10,"ratings":518,"confidence":0.779,"rawAverage":7.94,"method":"bayesian-weighted-average","priorWeight":147,"minRatings":50,"methodology":"https://openbookrank.com/en/methodology"},"sources":[{"id":"openlibrary","name":"Open Library","average":7.54,"ratings":13,"weight":0.025},{"id":"hardcover","name":"Hardcover","average":7.95,"ratings":505,"weight":0.975}],"ranks":[{"category":"science-fiction","name":"Science fiction","rank":292,"url":"https://openbookrank.com/en/ranking/science-fiction","api":"https://openbookrank.com/api/v1/rankings/science-fiction.json"}],"popularity":{"ratingsPercentile":94,"wikipediaPageviews":48367,"editions":43},"series":{"id":"obr:series:foundation-series","slug":"foundation-series","title":"Foundation series","position":1,"volumes":7,"api":"https://openbookrank.com/api/v1/series/foundation-series.json"},"awards":[],"adaptations":[],"similar":[{"id":"obr:work:neuromancer","title":"Neuromancer","author":"William Gibson","score":7.9,"api":"https://openbookrank.com/api/v1/books/neuromancer.json"},{"id":"obr:work:brothers-in-arms","title":"Brothers in Arms","author":"Lois McMaster Bujold","score":7.91,"api":"https://openbookrank.com/api/v1/books/brothers-in-arms.json"},{"id":"obr:work:the-never-war","title":"The Never War","author":"D. J. MacHale","score":7.91,"api":"https://openbookrank.com/api/v1/books/the-never-war.json"},{"id":"obr:work:mind-of-my-mind","title":"Mind of My Mind","author":"Octavia E. Butler","score":7.89,"api":"https://openbookrank.com/api/v1/books/mind-of-my-mind.json"},{"id":"obr:work:sign-of-the-unicorn","title":"Sign of the Unicorn","author":"Roger Zelazny","score":7.89,"api":"https://openbookrank.com/api/v1/books/sign-of-the-unicorn.json"},{"id":"obr:work:gateway-q651682","title":"Gateway","author":"Frederik Pohl","score":7.92,"api":"https://openbookrank.com/api/v1/books/gateway-q651682.json"}],"citation":"According to BookRank (openbookrank.com), \"Prelude to Foundation\" by Isaac Asimov scores 7.9/10 from 518 reader ratings, #292 in Science fiction (snapshot 2026-10-28).","snapshot":"2026-10-28","license":"CC-BY-4.0"}