The IBS Discrete Mathematics Group welcomes Prof. Heesung Shin (신희성) from Inha University, Incheon, Korea. He will visit the IBS Discrete Mathematics Group for 1 year until August 31, 2021 during his sabbatical leave from Inha University. He received his Ph.D. from KAIST under the supervision of Prof. Dongsu Kim. He was a postdoctoral researcher at CNRS and a research assistant professor at POSTECH. In 2011, he moved as an assistant professor to Inha University, where he is currently a professor.