The third event was succesfully held on September 8, 2018 at Le Dian Hotel, Serang. Three Plenary Speakers shared their thoughts regarding English Teaching and Learning which was covered in a general theme of the seminar: Teachers’ Professional Development: 21st Century Teaching Skills. The Keynote Speaker was Prof. Fuad Abdul Hamied, M.A., Ph.D., Professor of Language Education at Indonesia University of Education (UPI) and the President of the Association of TEFL in Indonesia (TEFLIN). The First Plenary speaker was Dr. Alvin Pang, the Dean of Training, Research Assessment and Consultancy Division at SEAMEO RELC, Singapore. The second Plenary Speaker was Dr. Peter Teo, Associate Professor and former Head, English Language and Literature Academic Group, National Institute of Education, Singapore. The third Plenary Speaker was R. Alpha Amirrachman, M.Phil., Ph.D., Special Staff of Ministry of Education and Culture of Republic Indonesia.