Prof. Suil O organized 3rd KECRWIC (Korean Early Career Researcher Workshop in Combinatorics), which took place in Iksan from July 22nd to August 3rd, 2018. The workshop was founded by Prof. Suil O with two other people together, and the first KECRWIC was held at SUNY-Korea in June 2017. KECRWIC is intended for early career mathematicians in the field of combinatorics.