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

Seminar given at ANRT Nancy on Oct. 26, 2017. About revival, litterature and autorship. With John Downer, Miguel de Cervantès, Paul Auster, Jorge Luis Borges, Roland Barthes, Michel Foucault, Le Corbusier and a dog. ANRTABCD, Letter A

Talk given EESAB Lorient, on January 28, 2018. The lives and deaths of John Baskerville. With John Baskerville, Caron de Beaumarchais, Voltaire, Sarah Eaves, Claude Jacob, Berger- Levrault, and Zuzana Licko. ANRTABCD, Letter B