In current debates, the idea of a wall becomes a point of discussion from which to explore the relationship between public engagement and academia. Are the walls that separate intellectual, linguistic, artistic, social, and political practices insurmountable? What other metaphors of the wall speak to us? How do we imagine these metaphors and what forms do they take? Who constructs them and who challenges them? When are they useful and when are they not? How do we cross them? This conference proposes to jump over, perforate, cross, and tear down walls. It invites us to transgress academic hermeticism in order to overcome isolation and promote reflection on intellectual work, its social dimension and its relationship with the public. Through original investigations, we hope to discuss limits and their forms, whether they be self-imposed or constructed, and strategies to overcome these limits.