Depending on the month and the day I would say that I speak between 12-15 language. I have read literature in 12 languages and I have given lectures or interviews in 7 languages. Apart from that, I have mastered several programming languages, because I work in computational linguistics, that is, I develop computer programs and websites which can deal with human language. I have also contributed to online language courses like GermanPod101 and Duolingo and I have written more than ten books (language courses or books about studying languages), which are available on Amazon. I am the founder of the Polyglot Gathering.