We are delighted to introduce the proceedings of the third edition of the International Conference on of Education and Science. The 3rd International Conference of Education and Science (ICES) Universitas Kristen Indonesia will be an annual event hosted by Education and Teacher Training Faculty, Universitas Kristen Indonesia. This year (2021), will be the third ICES UKI will be held on 17-18 November 2021 at Education and Teacher Training Faculty, Universitas Kristen Indonesia, Indonesia. This conference has brought researchers, developers and practitioners around the world. The theme of ICES 2021 was “Research and Education Sustainability Post COVID-19 in Asian Context”. The 3rd International Conference of Education and Science (ICES) 2021 consisted of 46 full papers. The conference tracks were teaching and learning, education technology, educational psychology, and christian education. “Research and Education Sustainability Post COVID-19 in Asian Context” has been chosen at the main theme for the conference. Science and education underlie all human life, especially in the face of the Industrial Revolution 4.0, which is clearly stated in RIRN. Thus, science and education will become a special field of study in the 3rd ICES 2021. Through this activity, it is expected to increase the number of international publications by Indonesian academics in the fields of natural science, social science, and education. The conference invites delegates from across Indonesian and Asian region and beyond, and is usually attended by more than 1000 participants from university academics, researchers, practitioners, and professionals across a wide range of industries. We strongly believe that The 3rd International Conference of Education and Science (ICES) 2021 provides a good forum for all researcher, developers and practitioners to discuss all science and education aspects that are relevant to The 3rd ICES 2021. We also expect that the future The 4rd ICES 2022 will be as successful