We are very pleased to present you with the next issue of the Journal of Health Inequalities. This time the Journal takes the form of a special edition, principally devoted to the recent scientific meeting organised on 24-25 October 2021 at the President Stanisław Wojciechowski Calisia University, Kalisz, Poland – the 2nd Calisia World Conference on Family Health. Overview of health development in Poland (please visit www.calisiaconference.org to find the programme and video recording). Nearly 4,500 participants from Poland and other countries registered at the conference system.