The subject of the research of Wim Kok is __difference and repetition,__ an area which bears a direct relationship to Wjm Kok__s practice, in which the production of work always emerges and passes through series. It is also the title of a book by Gilles Deleuze that has been used as source and reference to explicate the research. Taking this book Difference and Repetition as a departure point, an ongoing series of writings was produced that sought to expose the different angles of the subject. The majority of these texts were published in diverse platforms, constituting an exchange with related subjects and his practice as a foundation for exploring other territories. A selected collection of these texts constitutes the dissertation. The presentation of this research will take place during the defense in the Grand Auditorium of Leiden University.