Background: 51Talk is a leading online English teaching platform that provides high-quality language education to students all over the world. Founded in 2011, it has become one of the largest online English language education providers in the world, serving millions of students and employingthousands of qualified English teachers globally, and 51Talk has been listed in NewYork Stock Exchange (NYSE) since year 2016. 51Talk offers a wide range of courses, including general English, business English, test preparation, and more. The courses are designed to meet the needs of individual learners, with customized learning plans, interactive lessons, andreal-time feedback from experienced teachers. Mission: To provide accessible and affordable English education to students of all ages andskill levels. Vision: To be recognized as a highly respectable online education platform for centuries