It came to my attention that the info updated by @sweet_pez on the main post is not correct. While I'm arranging my links in my personal notes, here's what I can offer to everyone what you should study from zero all the way to advanced level. There is actually no fixed recommendations beyond N2 level, so feel free to pick any books that you feel you're able to cope with.
Please visit
Kinokuniya's Advanced Search page for searching these books.
JLPT N5Published by Japan Times
Genki 1 Textbook: An Integrated Course in Elementary Japanese (9784789014403)
Published by 3A Corporation
Minna no Nihongo Elementary 1 Textbook [2nd Edition] (9784883196036)
Minna no Nihongo Elementary 1 Supplementary Translation & Grammar Notes [2nd Edition] (9784883196043)
JLPT N4Published by Japan Times
Genki 2 Textbook: An Integrated Course in Elementary Japanese (9784789014434)
Published by 3A Corporation
Minna no Nihongo Elementary 2 Textbook [2nd Edition] (9784883196463)
Minna no Nihongo Elementary 2 Supplementary Translation & Grammar Notes [2nd Edition] (9784883196647)
Note: For Minna no Nihongo Elementary level, if you're struggling to memorise the vocabulary words, try to use my
Anki deck to aid your early studies.
JLPT N3Published by Japan Times
QUARTET: Intermediate Japanese Across the Four Language Skills I (9784789016957)
AN INTEGRATED APPROACH TO INTERMEDIATE JAPANESE (9784789013079) [Note: This may be out of print and possibly to be replaced by QUARTET. To buy this book, check Amazon or other sites.]
Published by 3A Corporation
Minna No Nihongo Intermediate Level 1 Textbook [First Edition] (9784883194681)
Minna no Nihongo Intermediate Level 1 Supplementary Translation & Grammar Notes [First Edition] (9784883195619)
Published by Kurosio Publishers
TOBIRA Gateway to Advanced Japanese Learning Through Content and Multimedia (9784874244470)
TOBIRA: Grammar Power - Exercises for Mastery (9784874245705)
TOBIRA: Teaching Intermediate Japanese - Teacher's Guide (9784874245293) [Note: Comprehension text translations included inside]
JLPT N2Published by Japan Times
QUARTET: Intermediate Japanese Across the Four Language Skills II (Coming Soon)
Authentic Japanese: Progressing from Intermediate to Advanced [New Edition] (9784789014625) [Note: This may be out of print and possibly to be replaced by QUARTET. To buy this book, check Amazon or other sites.]
Published by 3A Corporation
Minna No Nihongo Intermediate Level 2 Textbook [First Edition] (9784883195909)
Minna No Nihongo Intermediate Level 2 Supplementary Translation & Grammar Notes [First Edition] (9784883196142)
Note:
To download Official Audio for QUARTET:
http://bookclub2.japantimes.co.jp/downloadGrammar Resources for your studiesA Handbook of Japanese Grammar Patterns for Teachers and Learners (9784874246788)
Essential Japanese Expressions Grammatical Points Dictionary (JLPT N1-N5) (9784757418868)
A Dictionary of Basic Japanese Grammar (9784789004541)
A Guide to Japanese Grammar: A Japanese Approach to Learning Japanese Grammar (JLPT N4 + Pre-N3) (9781495238963)
Practice Kanji?Use
Japanese Kanji Study - 漢字学習 to practice writing with the stroke-detection system. It is not entirely free, you only need to pay once. However, there is a custom premade set that you can study with. Includes JLPT sets, Kanji Kentei, Kodansha and Kanji in Context sequence.
I recommend Kanji in Context Reference Book [Revised 2nd Edition] (9784789015295). Although this 2136 kanji sequence is not JLPT oriented, the sequence is arranged from the most elementary, most commonly used, and technical kanji for advanced level. Tandem this book with Kanji Study app to maximise your knowledge efficiency.
If there are other good books, feel free to add more recommendations. I may not aware of other alternative books outside. These are the best routes I can suggest to everyone!
Thank you and good luck!
Whats not correct ya? Please clarify. JLPT info is from official site so it should be accurate.
In terms of the books, its merely mentioned as reference. Everyone is free to get the books they want to refer to. Minna no Nihongo is commonly used in Asian countries as textbook but in other parts they may use others like Genki.
The information your provide on Page 1 is truly useful. Thank you

Much welcome!! Feel free to share if you chance upon any good resource or app along the way.