The text supplements the article by S. Linder and contains information about research on the primacy effect in Poland. The subject of J. Raciborski’s analyzes were elections to national councils (local government bodies) in 1988 – the last elections before the fall of communism in Poland, elections to the Sejm in 1989 and 1991. T. Żółtak investigated the existence of the primacy effect in the elections to the Senate in 1991-2007. However, the primacy effect in the 2014 regional elections was of greatest political importance. The
strength of this effect was measured by J. Flis. Analyzes were also carried out on the effect of a candidate’s position on the party semi-open list in proportional elections. However, this is a completely different issue, as in this case the position on the list is related to the actual political weight of the candidate. In Poland, the relationship of the primacy effect with postal elections has never been studied, which results from the marginal importance of the latter, as well as the procedures used in elections, which prevent a separate analysis of the content of votes cast by post and at the polling station.