Lisa Horvath is a curriculum specialist and independent researcher with more than 20 years' experience in English language teaching, teacher training, and materials development. She has taught English to students of all ages and has developed English language teaching materials for Oxford University Press and National Geographic Learning, among others, as well as ministries of education in the Republic of Uzbekistan, The Gambia, and Sierra Leone. She is currently based in Hungary.

Susan Iannuzzi has been a materials writer, curriculum designer, and teacher of English as an additional language for more than 25 years. With degrees in film studies, linguistics, law, instructional management, and leadership, she has explored the power of visual media throughout her academic and professional careers. She is currently based in Pittsburgh, Pennsylvania.