In 1982, few months after the publication of Donald Knuth article The Concept of a Meta-Font, Visible Language publishes Meta-Font, Metamathematics, and Metaphysics : Comments on Donald Knuth’s « The Concept of  a  Meta-Font », by Douglas Hofstadter, an american professor of cognitive sciences. His remarks bring nuances to Knuth’s conclusions, addressing the problem from another point of view. His investigations in typography, in the field of artificial intelligence, subsequently appeared in the Letter Spirit project, where he tried to develop a program that is capable of developing an entire alphabet from a few seed letters, based on a very coarse grid. Years later, when the concepts of parametric fonts, AI and deep learning applied to type design reappeared, Hofstadter’s ideas are still relevant. Talks (FR / EN) given in Istanbul during Istype 2017, on June 10, and at the Fonderie de l'image in Paris, on November 13, 2018. ANRTABCD, Letter K

Talk given at ENSBA Lyon on November 6, 2018. About ophtalmogy, compact typography, marionnettes and stencils. With Louis-​Emile Javal & William Addison Dwiggins, and documents from Bruce Kennett, Eric Kindel and Fred Smeijers. ANRTABCD, Letter D

About typography, paleontology, evolutionism, fixism, interpolation and miscegenation. Seminar given online during the Covid-19 confinement, on May 7, 2020. With Georges Cuvier, Jean-

Curation and organisation, with Vincent Perrottet, of the exhibition “Un imprimeur : Lézard Graphique”, presenting a selection of posters printed by the famous silkscreen workshop. With works of Karel Martens, Hennig Wagenbreth, Metahaven, Sarah De Bondt, Jean-Marc Ballée, Mathias Schweizer, Fanette Mellier, Frederic Teschner, åbäke, Office ABC, Ter Bekke & Behage, Helmo, William Jean, Pierre DiSciulio, Thomas Huot-Marchand, Lieux Communs, Flag, Pierre Béjan et Nicolas Ledoux… This traveling exhibition has later been presented in many places: Chaumont, Le Havre, Amiens, Auxerre, etc.