{"id":"obr:work:dark-age","slug":"dark-age","url":"https://openbookrank.com/en/book/dark-age","urls":{"en":"https://openbookrank.com/en/book/dark-age","es":"https://openbookrank.com/es/libro/dark-age","sv":"https://openbookrank.com/sv/bok/dark-age"},"title":"Dark Age","titles":{"en":"Dark Age","pl":"Czas mroku","de":"Das dunkle Zeitalter -","es":"Edad oscura","sv":"Mörkrets tid","ko":"다크 에이지"},"author":{"id":"obr:author:pierce-brown","name":"Pierce Brown","api":"https://openbookrank.com/api/v1/authors/pierce-brown.json"},"year":2019,"pages":800,"originalLanguage":"en","identifiers":{"wikidata":"Q55609029","openLibrary":"OL20072759W","isbn13":"9781980000174","isbns":["9781980000174","9788427216389"],"isbnByLanguage":{"en":"9781980000174","es":"9788427216389"},"googleBooks":"AmNDDwAAQBAJ","hardcover":"dark-age","amazon":{"es":"8427216386"}},"score":{"value":8.64,"scale":10,"ratings":824,"confidence":0.849,"rawAverage":8.8,"method":"bayesian-weighted-average","priorWeight":147,"minRatings":50,"methodology":"https://openbookrank.com/en/methodology"},"sources":[{"id":"openlibrary","name":"Open Library","average":8.92,"ratings":13,"weight":0.016},{"id":"hardcover","name":"Hardcover","average":8.8,"ratings":811,"weight":0.984}],"ranks":[{"category":"science-fiction","name":"Science fiction","rank":52,"url":"https://openbookrank.com/en/ranking/science-fiction","api":"https://openbookrank.com/api/v1/rankings/science-fiction.json"}],"popularity":{"ratingsPercentile":96,"wikipediaPageviews":124630,"editions":0},"series":{"id":"obr:series:red-rising-saga","slug":"red-rising-saga","title":"Red Rising Saga","position":5,"volumes":7,"api":"https://openbookrank.com/api/v1/series/red-rising-saga.json"},"awards":[],"adaptations":[],"similar":[{"id":"obr:work:the-obelisk-gate","title":"The Obelisk Gate","author":"N. K. Jemisin","score":8.63,"api":"https://openbookrank.com/api/v1/books/the-obelisk-gate.json"},{"id":"obr:work:calibans-war","title":"Caliban's War","author":"James S. A. Corey","score":8.65,"api":"https://openbookrank.com/api/v1/books/calibans-war.json"},{"id":"obr:work:11-22-63","title":"11/22/63","author":"Stephen King","score":8.62,"api":"https://openbookrank.com/api/v1/books/11-22-63.json"},{"id":"obr:work:isles-of-the-emberdark","title":"Isles of the Emberdark","author":"Brandon Sanderson","score":8.67,"api":"https://openbookrank.com/api/v1/books/isles-of-the-emberdark.json"},{"id":"obr:work:nemesis-games","title":"Nemesis Games","author":"James S. A. Corey","score":8.69,"api":"https://openbookrank.com/api/v1/books/nemesis-games.json"},{"id":"obr:work:leviathan-wakes-97823","title":"Leviathan Wakes","author":"James S. A. Corey","score":8.58,"api":"https://openbookrank.com/api/v1/books/leviathan-wakes-97823.json"}],"citation":"According to BookRank (openbookrank.com), \"Dark Age\" by Pierce Brown scores 8.64/10 from 824 reader ratings, #52 in Science fiction (snapshot 2026-10-28).","snapshot":"2026-10-28","license":"CC-BY-4.0"}