My friend is looking for a resource to become fluent in French, he is forced to work with it. Asked to find a certain book, but it is not yet pirated on the resources of the wiki. My guess is that pirates have better alternatives for such a thing, so I’m launching a discussion.
I only ever heard about the book “Minna no Nihongo” in the context of learning Japanese.
I think the whole premise of Duolingo that learning a language means translating to and from it is bonkers. I know multiple languages at various levels, and every time to speak I create my sentences in the target language directly. Translating is a totally different skill set