This research has pointed out the effects of thinking education on the prospective teachers' critical and media literacies. The research, designed as mixed method with sequential triangulation, has enlightened the efficacy of thinking education on the prospective teachers' literacies. The study group, selected by the sampling criteria, one of the purposive sampling methods, composed of 40 social studies prospective teachers, having been trained in terms of thinking critically on media messages and texts, at Education Faculty, Bartin University during the 2016-2017 academic year. It is concluded that post-test media literacy and critical literacy scores of the trained prospective teachers have increased. Moreover, the positive effects of thinking education on the prospective teachers' media and critical literacies are expressed in detail within the framework of various qualitative data and it is inferred that thinking education reached the goal of training critical literate and media literate individuals. Furthermore, how to integrate media literacy and critical literacy into any curriculum in teacher education has been exemplified through this research. Therefore, these literacies should be taught independently from any subject or a discipline as the objectives of teacher education curriculum.