A number of official guidebooks have been published for the Final Fantasy series, typically including additional information about the setting and creation of the games, walkthroughs, illustrations, and developer interviews. They often contain background information on the story and characters not available within the games, and may clarify plot details or even add supplemental short stories.
The majority of the early official guides were published by NTT Publishing. With Final Fantasy VII, Studio BentStuff was brought on board, working with Famitsu staff and Enterbrain to publish Final Fantasy VII True Script Dissection - The Complete. Beginning with Final Fantasy VIII, Studio BentStuff began writing the Ultimania series of guidebooks published by DigiCube, a subsidiary of Square Co. Ltd. and, later, Square Enix, which also published revised versions of previous guides. Following the bankruptcy of DigiCube in 2003, Studio BentStuff has also taken up mantle of publisher for the Ultimania series, publishing all new guides and reprinting old ones.
The Ultimania series guides are perhaps the most well known amongst the English audience, perhaps due to an increasing number of Japanese-literate fans providing translations of the contents for more recent games. The name, a portmanteau of "ultimate" and "mania", signifies the target audience of so-called ultimate "otaku" (maniacs) who are compelled to know every detail about the games. Like previous guides, they are often sub-divided into multiple volumes, targeting specific areas of the game, such as gameplay or scenario information.
Final Fantasy III
- Final Fantasy III [Volume 1] Fundamental Knowledge Book - ISBN 9784871880794, 1990, NTT Publishing
(ファイナルファンタジーIII[第1巻] 基礎知識編, Fainaru Fantajī Surī [Daiichi Maki] Kisochishiki-hen) - Final Fantasy III [Volume 2] Complete Walkthrough Book Part One - ISBN 9784871880800, 1990, NTT Publishing
(ファイナルファンタジーIII[第2巻] 完全攻略編上, Fainaru Fantajī Surī [Daini Maki] Kenzan Kōryaku-hen Jō) - Final Fantasy III [Volume 3] Complete Walkthrough Book Part Two - ISBN 9784871880817, 1990, NTT Publishing
(ファイナルファンタジーIII[第3巻] 完全攻略編下, Fainaru Fantajī Surī [Daisan Maki] Kenzan Kōryaku-hen Ge)
Final Fantasy IV
- Final Fantasy IV Setting Data Book - ISBN 4871881288, 1991, NTT Publishing
(ファイナルファンタジーIV 設定資料編, Fainaru Fantajī Fō Settei Shiryō-hen) - Final Fantasy IV Fundamental Knowledge Book - ISBN 4871881318, 1991, NTT Publishing
(ファイナルファンタジーIV 基礎知識編, Fainaru Fantajī Fō Kisochishiki-hen) - Final Fantasy IV Battle Analysis Book - ISBN 4871881369, 1991, NTT Publishing
(ファイナルファンタジーIV 戦闘解析編, Fainaru Fantajī Fō Sentō Kaiseki-hen) - Final Fantasy IV Complete Walkthrough Book - ISBN 4871881385, 1991, NTT Publishing
(ファイナルファンタジーIV 徹底攻略編, Fainaru Fantajī Fō Tettei Kōryaku-hen) - Final Fantasy IV Easytype - ISBN 4871881482, 1991, NTT Publishing
(ファイナルファンタジーIV イージータイプ, Fainaru Fantajī Fō Ījītaipu) - Final Fantasy IV Guide Book - ISBN 4925075047, 1997, DigiCube
(ファイナルファンタジーIV ガイドブック, Fainaru Fantajī Fō Gaidobukku) - Final Fantasy IV Master's Guide - ISBN 4925075454, 2002, DigiCube
(ファイナルファンタジーIV マスターズガイド, Fainaru Fantajī Fō Masutāzu Gaido) - Final Fantasy IV Wonderswan Color Version - Square Official Guide Book - ISBN 4087791610, 2002, Shueisha (V-Jump Game Books Series)
(ファイナルファンタジーIV ワンダースワンカラー版 スクウェア公式ガイドブック, Fainaru Fantajī Fō Wandāsuwan Karā-han Sukuwea Kōshiki Gaido Bukku) - Final Fantasy IV Advance Perfect Guide - ISBN 4087793516, 2005, Shueisha (V-Jump Game Books Series)
(ファイナルファンタジーIV アドバンス -パーフェクトガイド-, Fainaru Fantajī Fō Adobansu - Pāfekuto Gaido) - Final Fantasy IV Advance Official Complete Guide - ISBN 4757516002, 2006, Square Enix
(ファイナルファンタジーIV アドバンス 公式コンプリートガイド, Fainaru Fantajī Fō Adobansu Kōshiki Konpurīto Gaido) - Final Fantasy IV Official Final Guide - ISBN 4757740042, 2008, Enterbrain
(ファイナルファンタジーIV アドバンス 公式ファイナルガイド, Fainaru Fantajī Fō Kōshiki Fainaru Gaido) - Final Fantasy IV Official Complete Guide - ISBN 4757522053, 2008, Square Enix
(ファイナルファンタジーIV アドバンス 公式コンプリートガイド, Fainaru Fantajī Fō Kōshiki Konpurīto Gaido)
Final Fantasy V
- Final Fantasy V Fundamental Knowledge Book - ISBN 487188192X, 1992, NTT Publishing
(ファイナルファンタジーV 基礎知識編, Fainaru Fantajī Faibu Kisochishiki-hen) - Final Fantasy V Battle Analysis Book - ISBN 4871882047, 1992, NTT Publishing
(ファイナルファンタジーV 戦闘解析編, Fainaru Fantajī Faibu Sentō Kaiseki-hen) - Final Fantasy V Adventure Guidebook - ISBN 4871882063, 1993, NTT Publishing
(ファイナルファンタジーV 冒険ガイドブック, Fainaru Fantajī Faibu Bōken Gaidobukku) - Final Fantasy V Complete Walkthrough Book - ISBN 4871882055, 1993, NTT Publishing
(ファイナルファンタジーV 徹底攻略編, Fainaru Fantajī Faibu Tettei Kōryaku-hen) - Final Fantasy V Advance Master Guide - ISBN 4087793877, 2006, Shueisha (V-Jump Game Books Series)
(ファイナルファンタジーV アドバンス -マスターガイド-, Fainaru Fantajī Faibu Adobansu - Masutā Gaido) - Final Fantasy V Advance Official Complete Guide - ISBN 4757518226, 2006, Square Enix
(ファイナルファンタジーV アドバンス 公式コンプリートガイド, Fainaru Fantajī Faibu Adobansu Kōshiki Konpurīto Gaido)
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Final Fantasy VI
- Final Fantasy VI Adventure Guidebook - ISBN 4871883025, 1994, NTT Publishing
(ファイナルファンタジーVI 冒険ガイドブック, Fainaru Fantajī Shikkusu Bōken Gaidobukku) - Final Fantasy VI Setting Data Book - ISBN 4871882993, 1994, NTT Publishing
(ファイナルファンタジーVI 設定資料編, Fainaru Fantajī Shikkusu Settei Shiryō-hen) - Final Fantasy VI Fundamental Knowledge Book - ISBN 4871883000, 1994, NTT Publishing
(ファイナルファンタジーVI 基礎知識編, Fainaru Fantajī Shikkusu Kisochishiki-hen) - Final Fantasy VI Complete Walkthrough Book - ISBN 4871883019, 1994, NTT Publishing
(ファイナルファンタジーVI 徹底攻略編, Fainaru Fantajī Shikkusu Kōryaku-hen) - Final Fantasy VI The Complete - ISBN 4871883035, 1994, NTT Publishing
(ファイナルファンタジーVI ザ・コンプリート, Fainaru Fantajī Shikkusu Za Konpurīto) - Final Fantasy VI Character Collections - ISBN 4871882853, 1994, NTT Publishing
(ファイナルファンタジーVI キャラクターコレクションズ, Fainaru Fantajī Shikkusu Kyarakutā Korekushonzu) - Final Fantasy VI Advance Master Guide - ISBN 4087793931, 2006, Shueisha (V-Jump Game Books Series)
(ファイナルファンタジーVI アドバンス -マスターガイド-, Fainaru Fantajī Shikkusu Adobansu - Masutā Gaido) - Final Fantasy VI Advance Official Complete Guide - ISBN 4757518463, 2006, Square Enix
(ファイナルファンタジーVI アドバンス 公式コンプリートガイド, Fainaru Fantajī Shikkusu Adobansu Kōshiki Konpurīto Gaido)
Compilation of Final Fantasy VII
Final Fantasy VII
- Final Fantasy VII True Script Dissection - The Complete
- Final Fantasy VII True Script Dissection - The Complete (Revised Edition)
- Final Fantasy VII Ultimania Omega
Crisis Core: Final Fantasy VII
- Crisis Core: Final Fantasy VII Ultimania
Compilation of Final Fantasy VII
- Final Fantasy VII 10th Anniversary Ultimania
- Final Fantasy VII 10th Anniversary Ultimania (Revised Edition)
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Final Fantasy VIII
- Final Fantasy VIII Ultimania - ISBN 4925075497, 1999, DigiCube - Reprint: ISBN 4757512430, 2004, Studio BentStuff
(ファイナルファンタジーVIII ULTIMANIA, Fainaru Fantajī Eito Arutimania)
Final Fantasy IX
- Final Fantasy IX Online Ultimania - PlayOnline.com, 2000~2002, Square
- Final Fantasy IX Ultimania
Final Fantasy X
Final Fantasy X
- Final Fantasy X Final Fantasy X Scenario Ultimania
- Final Fantasy X Battle Ultimania
- Final Fantasy X Ultimania Omega
Final Fantasy X-2
- Final Fantasy X-2 Ultimania
- Final Fantasy X-2 Ultimania Omega
- Final Fantasy X-2 International + Last Mission Ultimania
Ivalice Alliance
Final Fantasy XII
- Final Fantasy XII Scenario Ultimania
- Final Fantasy XII Battle Ultimania
- Final Fantasy XII Ultimania Omega
- Final Fantasy XII International Zodiac Job Change System Ultimania
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Vagrant Story
- Vagrant Story Ultimania
Fabula Nova Crystallis
Final Fantasy XIII
- Final Fantasy XIII Battle Ultimania
- Final Fantasy XIII Scenario Ultimania
- Final Fantasy XIII Ultimania Omega
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Final Fantasy XIII-2
- Final Fantasy XIII-2 Battle Ultimania
- Final Fantasy XIII-2 Scenario Ultimania
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Final Fantasy series
- Final Fantasy Complete Works [First Half] - ISBN 9784925075008, 1997, DigiCube
(ファイナルファンタジー大全集[上], Fainaru Fantajī Daizenshū [Jō]) - Final Fantasy Complete Works [Second Half] - ISBN 9784925075015, 1997, DigiCube
(ファイナルファンタジー大全集[下], Fainaru Fantajī Daizenshū [Ge]) - Square Official - Final Fantasy Collection - Fantasy World Walkthrough Book - ISBN 4925075454, 1999, DigiCube
(スクウェア公式 ファイナルファンタジーコレクション 幻想世界の攻略本, Sukuwea Kōshiki Fainaru Fantajī Korekushun Gensō Sekai no Kōryaku-hon) - Final Fantasy Complete Works 1 through 6 Vol. 1 Revised Edition - ISBN 4887870442, 2002, DigiCube
(ファイナルファンタジー大全集 Complete works 1 through 6 Vol.1 上巻 改訂版, Fainaru Fantajī Daizenshū Complete works 1 through 6 Vol.1 Jūkan Kaiteiban) - Final Fantasy Complete Works 1 through 6 Vol. 2 Revised Edition - ISBN 4887870450, 2002, DigiCube
(ファイナルファンタジー大全集 Complete works 1 through 6 Vol.1 下巻 改訂版, Fainaru Fantajī Daizenshū Complete works 1 through 6 Vol.2 Gekan Kaiteiban) - Final Fantasy 20th Anniversary Ultimania - File 1: Character Book
- Final Fantasy 20th Anniversary Ultimania - File 2: Scenario Book
- Final Fantasy 20th Anniversary Ultimania - File 3: Battle Book