Since I became an astronomy fan nearly 10 years ago, I have spent a lot of time on astronomy public outreach. I was elected president of Astronomical Association of Nanjing University (2014-2015), president of Astronomy Union of Nanjing Universities (2015-2016) and president of Student Union of the Astronomy Department of Nanjing University (2015-2016). I organized many sidewalk astronomy events, astronomy lectures for public and other popular science activities. I have also written many astronomy articles (mostly in Chinese) for public. You can find some photos and links below.