On Friday March 22, Eric Kindel and James Mosley will contribute papers to the one-day colloquium ‘Printed image and decorative print, 1500–1750’ being convened by Reading’s Early Modern Research Centre. They will both present projects and artefacts associated with the Académie Royale des Sciences in Paris. Eric will discuss the invention of stencil duplicating by Christiaan Huygens, and James will explore a text and an unknown iconography of the making of books that were constituents of the Description des Arts et Métiers.