This issue of Engramma is intended as an update of the overview of studies dedicated to Warburg in the world: an important work of reconnaissance inaugurated with Engramma 165, Warburgian Studies. The issue brings together contributions from different scholars, sharing a common vision of Warburg and his thought. A Companion to Warburgian Studies is divided into three parts: I. Essays; II. Overviews; III. Presentations and Reviews.