Following the initial public presentation of the TESTER project by the project's "nodes" in November 2003 , we now present the TESTER BOOK (Trabajo de nodos / Adabegiak lanean / Nodes at work), which contains texts by the coordinators, theoretical texts, graphic works and a look ahead to the production of the projects.

The contents of the publication, divided into three parts, provides graphic evidence of how extensive the TESTER network is, as well as the work of the nodes on which it is built. As well as contributing their own text (Section 1) each of these nodes or coordinators has invited collaborators whose theoretical contribution is contained in Section 2 . Section 3 gives a foretaste of the artists' projects to be produced in the next phase of TESTER.

The book, published in Basque, Spanish and English, forms a collection of essays which are brand new on the Basque scene, related to digital culture, the new support systems for art, and contemporary culture from a political conception of art.

The book has been published using the "Copyleft" formula, which promotes the free circulation of knowledge and the collective enjoyment of intangible goods. This concept refutes the restrictions of "copyright" and the prevailing mercantilist views of intellectual property.