In #Elsevier's #Scopus #SCImago ranking of book series in the field "#PoliticalScience and #InternationalRelations," the ibidem-Verlag Book series "Soviet and Post-Soviet Politics and Society" is ranked first in the categories:
(a) total documents published in 2021,
(b) total documents published in 2018-20,
(c) references in 2021, and
(d) citable documents in 2018-20.
See:
https://www.scimagojr.com/journalrank.php?category=3320&type=k&order=titem&ord=desc