The Journal of Theoretical Educational Sciences (JTES) is a scientific, peer-reviewed, and open-access electronic journal. We welcome research and reviews in English, with a focus on both theoretical and practical aspects of topics related to education. JTES publishes four issues in January, April, July, and October. JTES is indexed by TR Dizin (2012-2013, 2017-ongoing), and ERIC (starting from 2020). In JTES, no fee is charged from the author or institution under any name.