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George M. Jacobs received their PhD in Educational Psychology in 1991 from the University of Hawai’i at Manoa and has taught in Singapore since 1993. Education is George’s passion, in particular such areas as humane education, student-centered learning, cooperative learning, extensive reading, and ecolinguistics. George has hundreds of publications in these areas and has served on the boards of local and international organizations, for example as vice-president of Singapore’s Kampung Senang Charity and Education Foundation.

Anita Lie is a professor at Widya Mandala Catholic University, Surabaya, Indonesia. She teaches at the Faculty of Teacher Training and the Graduate School. Her areas of research are teacher professional development, English education, heritage language learning. She has also been consulting projects on school improvement in remote regions of Indonesia. She was granted SEAMEO-Jasper Fellowship Award in 2000 for her research on English curriculum in Indonesia. In 2011, she was a research fellow at the University of California, Berkeley. In 2016, she got a research grant from American Institute for Indonesian Studies (AIFIS) Luce Fellowship for her research on heritage language learning among second generation of Indonesian-Americans in California. In 2018, she got a Dedicated Scholar Award from Kompas, a leading national newspaper in Indonesia. She has published books and articles in scholarly journals as well as newspapers.

Siti Mina Tamah is a full-timer at the English Department of Widya Mandala Surabaya Catholic University, Indonesia. She has been working in the field of education since 1988. Ever since she graduated from the University of Groningen, the Netherlands where she obtained her Doctor degree in 2011 funded by the Indonesian Government, she has been involved in teaching students at Master's Program in TEFL, Graduate School at Widya Mandala Catholic University. In 2003 she was granted a SEAMEO (RELC) Research Fellowship Award. In 2013 she was an awardee of Scheme of Academic Mobility and Exchange program held by the Indonesian Directorate General of Higher Education. This award made her a visiting scholar at Southern Cross University, Lismore, Australia for three months. Her research areas are teacher training, and teaching methodology. Her current research interests include Cooperative Learning, teacher development program, and assessment.