Are ITU ID Master's Program course being held in Turkish or in English? Some courses are conducted in English and some in Turkish. In the below link you can find the list of courses and the courses with English titles are being held in English http://www.tasarim.itu.edu.tr/en/graduate_programs.html
If I take Turkish language courses during my graduate studies, can I follow the courses easily? Even if you take Turkish language courses, it would be not enough for following the courses, which are in Turkish. In the PhD programme, you can take courses from other departments too; this way, foreign students are able to fulfil their credits all in English.