The Phi books' is a project that uses the house as a metaphor to explore the notions of interdisciplinary collaboration, consent and shared authorship. It uses participatory narrative, algorithms and designs about the participant's mental or physical houses to explore how borders, walls and doors facilitate collaboration. The project started in 2008 and since then it has lead to the production of books, interactive material, conference presentations and performances produced by the authors and the participants, which are both fictional and imaginative while also being methodologically reflective.