This essay addresses two preeminent figures in the study of the doctrine of signs. The first is John Poinsot (9 July 1589 – 15 June 1644). The second is John Deely (26 April 1942 – 7 January 2017). In many ways, the academic lives of these two noteworthy scholars are forever intertwined because of their scholarly contributions to the doctrine of signs. On the one hand, John Poinsot authored a very significant, but long neglected document, Tractatus de Signis, which articulated a comprehensive analysis of the doctrine of signs. Moreover, his work constituted a significant link between Christian theology, philosophical Latinity, and modern and postmodern scholarly matters. In this regard, John Deely resurrected Poinsot’s neglected text by providing a detailed, annotated translation of the original Latin version together with a meticulous account of its implications for the doctrine of signs. As a result, we now possess the “missing link” between these philosophical and intellectual epochs. Deely further addressed the role that Charles Sanders Peirce played in the study of the doctrine of signs. Finally, there is a discussion of the “International Open Seminar on Semiotics: A Tribute to John Deely on the Fifth Anniversary of His Passing” available at the University of Coimbra website.All the contents are fully attributable to the author, Doctor Frank Nuessel. Should you wish to get this text republished, get in touch with the author or the editorial committee of the Studia Poinsotiana. Insofar as possible, we will be happy to broker your contact.Studia PoinsotianaThe first-ever peer-reviewed scholarly publishing venue offering an encyclopedic web of understanding concentrating on John of St. Thomas (Poinsot).Explore: https://www.uc.pt/fluc/ief/publica/poinsotiana/