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I already speak some Japanese and I speak German very well. I am using these as a review through my local library system. One thing I found is a bit off and often is with Japanese is that you ask a person to write in Japanese but have the lessons for writing kana separate and ongoing with the other lessons. Also your keyboard input is slightly off from my foreign language IME...Your basic lessons only accept exact copies of what you have written when the kanji form and sometimes other writings are correct.