T57

Typewritten with carbon paper and ink ribbon on copy paper and tracing paper, with wallpaper cover 42,6 x 30,3 cm, 2025

T57 originates from the permutation diagram conceived by Sol LeWitt for Seth Siegelaub's Xerox Book (1968), in which the numbers 1, 2, 3 and 4 identify the four line directions and generate the twenty-four possible permutations of these four elements.

Rather than reproducing LeWitt's original graphic vocabulary, the work adopts its combinatorial structure as the foundation for an independent chromatic system.

Faithful to LeWitt's permutational logic, the first sheet is typed with a black ink ribbon on white paper. On its reverse, a sequence of eight colours is repeated over three cycles. The second sheet, typed on tracing paper, introduces additional chromatic sequences: on the recto, three colours—red, orange and green—are repeated across eight modules, while on the verso a second sequence of eight colours is distributed, with white replacing blue. The interaction between the numerical permutations and the chromatic system developed across the two sheets generates twenty-four unique chromatic configurations, ensuring that no grid is ever repeated throughout the book.

The book opens with a visual key presenting the twenty-four numerical permutations together with the chromatic sequences conceived for the work. These introductory pages establish the generative system that underlies the entire book and provide the conceptual framework from which every subsequent grid is produced.

The transparency of the tracing paper introduces a further level of transformation. The superimposition of the two sheets creates shifting relationships between colour, density and perception, allowing the fixed combinatorial structure to unfold through constantly changing visual interactions.

Through the language of typewriting, T57 reactivates LeWitt's conceptual methodology. The interaction between numerical permutations and an autonomous chromatic system transforms a fixed combinatorial structure into a unique artist's book, where number, colour, transparency and seriality become the generators of a continuously evolving visual field.