The book describes the research of the Holodomor and other issues related to genocidal studies. Demographic and sociocultural aspects of the Holodomor-genocide, methods and narratives of denial of the Holodomor, other issues related to the history of the biggest crime committed against Ukrainians in the 20th century are considered. The second thematic block of the collection concerns the discussions surrounding the qualification of the Ukrainian-Polish conflict in Volyn during the Second World War. Most of the scientific articles included in the book were written during 2016–2021. Some of the research works are published for the first time. The publication is for historians, journalists, political scientists, and anyone interested in the problems of studying the history of the Holodomor and genocides of the 20th century.