In February 2022, the Thailand Extensive Reading Association (TERA) in collaboration with Sakdibhornssup Foundation launched a project called “Building a Nation of Readers”. The project provides an opportunity for secondary school students across Thailand to have hands-on experience of extensive reading outside of class through a reading marathon event. 200 students participated in the project and were divided into 20 teams with one teacher supervising each team. Xreading.com was used as the platform for the participants to read graded readers of their own choice and to assist the organizing team to keep records of their reading. A webinar on tips for improving reading skills and vocabulary through reading graded readers and a workshop on online extensive reading via Xreading were conducted to prepare the participants for the marathon. This presentation will reveal participants’ opinions and experience of online extensive reading and highlight what needs to be done to keep their love of reading growing.