I am Brazilian, I am 17 years old and I intend to study international relations. I am interested in specializing in the Asian political and economic scene, and I would like to know where (books, documentaries, etc.) I can begin to understand more how the East / Asian society works? Thank you!
East Asia: A Social, Cultural and Political History by Ebrey, Walthall and Palais is a very good starting point. From there, you should be able to identify regions, time periods or aspects that you're particularly interested in and continue working from there.