The transformation of coursebook publishing into an industrial giant has brought about variety, choice, and difficulty of decision making. As coursebook selection profoundly influences the quality of foreign language instruction in Turkey, it is essential to investigate what kind of instruments are used, which method is followed, what criteria are sought and how relevant parties are affected by its results. Therefore, 54 graduate theses evaluating EFL coursebooks in the 2001-2013 period were taken from the CoHE Thesis Center. The documentary data were subjected to content analysis by using the thesis categorisation form for describing research trends, determining shared evaluative criteria and variable patterns, and providing recommendations for the future. It was revealed that: (i) studie...