Photo Gallery

Photographs, especially instantaneous photographs, are very instructive, because we know that they are in certain respects exactly like the objects they represent.

Charles Peirce, “What is a Sign?”

General Meeting: Las Vegas, 2026

  • Richard, Chiara, Jimmy, Kees, and Aaron in the Valley of Fire
  • Road Trip to the Valley of Fire
  • Kees de Waal’s Presidential Address

Peirce Society Takes Chicago: Central APA, 2026

  • The Logic of the Future: Author Meets Critics. Pictured left to right: Nathan Haydon, Ahti Pietarinen, Nathan Houser, Kees de Waal
  • Ahti on the Logic of the Future
  • Kees on Editing Peirce’s Manuscripts
  • Haydon on Modernizing Peirce’s Graphs
  • Houser on Graphs and Perception
  • Chicago Skyline Reflected
  • Peirce on Inference and Method, Chicago 2026. From left: Lois Rendl, Angie Paola Hugueth Vásquez, Kees de Waal, Ahti Pietarinen, Nathan Haydon, Scott Metzger
  • Angie Paola Hugueth Vásquez on the “Topos of Peircean Existential Graphs Over Reimann Surfaces”
  • Lois Rendl “On the Different Ways Peirce Distinguishes between Induction and Hypothesis (or Abduction) and Their Relation to One Another”
  • A Morning Walk in Chicago
  • From Vienna for Peirce and Pizza

Eastern APA, Baltimore, 2026

Pragmatist Approaches to Animal Minds. Right to left: Daniel Brunson, Jessica Wahman, Vincent Colapietro.