This article contains a bibliometric analysis and an overview of the lifetime achievement of Jerzy Leonard Myśliński (1934–2022). He authored 287 academic publications devoted mostly to media history (81%), including 25 monographs, 30 studies published in collective works, and more than 232 articles and reviews. A citation analysis of his contributions shows that Jerzy Leonard Myśliński ranks as one of the most highly cited historians of the Polish press in 1960–2010.