This is a preface to the special issue on Proceedings of the Sixth Russian-Chinese Conference on Knot Theory and Related Topics which was held in Novosibirsk in June 2019.
More details could be found in http://labtd.nsu.ru/6RCCKT/
The Laboratory of Topology and Dynamics of the Novosibirsk State University and Sobolev Institute of Mathematics organize VI Russian-Chinese Conference on Knot Theory and Related Topics. The conference will be held from June 17 (day of arrivals) to June 21 (day of departures) at the picturesque surroundings of Novosibirsk in Akademgorodok.