Arthur Döhler, B.A. (Bachelor of Arts) in English and Portuguese Languages and Literature, is an educational specialist and researcher. A certified language teacher at Arizona State University, he is also a translator, author, and proofreader. In 2017, he published his first book, Manual do Ilustrador de Sonhos, composed of award-winning texts. A quality control specialist by Duolingo, he has complementary international training at institutions such as Harvard University and the Erasmus University of Rotterdam. He is a member of the Biology of Language (Bioling) research group at the Federal University of Rio de Janeiro (UFRJ). He currently develops works in Linguistics directed toward Second Language Acquisition.