The Jan van Eyck go club, a project by artist Christophe Lemaitre, was an aesthetics club that materialised in the form of a Go club. It was conceived as an artwork for the public sphere and took place from January to December 2012 in a space at the Jan van Eyck Academie. The Book of Go is a diptych which extends and explores the issues addressed by the Jan van Eyck go club. The first of the two project’s parts, subtitled The Cognition of Forms, is a split screen-print (Text and pictures) which can be folded like a book, a painted book. Initially an attempt to define what is a shape at the game of Go, what is the concept of a territory, the text considers Go as a morphogenetic process and attempts to re-think Go as a perceptive experience rather than a game. Stated as a work of art on its own right, this first Book serves as a preface to the second, yet to come.