I am researching how Japanese learners find the best textbook. If you have bought any Japanese textbook ever, can you let me know which one you use(used) and why you choose it?
Why I research this? I guess not a few Japanese learners have very limited information on Japanese textbook and it makes hard to choose the best one and it causes low persistence rate of Japanese study. I would like to change the situation!
Thank you very much for your kind cooperation!