Good grammar books
In my constant online research on good materials to learn Japanese, I have found some really great stuff. Unfortunately, one of the texts is not in English. It's a book written in Portuguese, by Brazilian professor Luiz Rafael Passari. It's named "Desvendando a Língua Japonesa". It is REALLY GREAT for a beginner, since its concepts and examples are simple. It's useful, though not very extensive. You can download this book on his website: https://programajaponesonline.com.br/ (It requires a registration). The second one is a book by Tae Kim. Well, it's simply the best available Japanese grammar book. It's really complete, and of course complex. It really teaches you how to speak Japanese in a formal and informal way. It is available in this link: http://www.guidetojapanese.org/grammar_guide.pdf The third one is a guide to learn Kanji. Kanji is the set of Chinese characters that were exported to Japanese. They are complex and some people really have di...