Rob has written or edited six series of graded readers totaling over 300 books. He is currently teaching at Thammasat University.

Suparuthai is the Director of the Language Institute, Burapha Univeristy. She is one of the TERA's team (Thailand Extensive Reading Association) promoting ER in Thailand.

Chutipa is a lecturer at Rajabhat Maha Sarakham University and a member of  the Thailand Extensive Reading Association.  She works to optimize extensive reading materials for diverse English proficiency levels.

Phanphaka is a lecturer at Burapha University, Thailand and a former editor of SE-ED Enjoy Reading series, a localized English graded readers in Thailand.  

Nuchsara is a lecturer at Mahasarakham University, Thailand. Her works focuses on promoting ER, training educators, and developing graded readers that support English learners in Thailand.