Economic, environmental and health information is on the poster. On the one hand, there is an increasingly active consumer seeking cognitive support to support his commitment to action. On the other hand, public or private institutional actors try to wear their voices in the form of posters, packaging or labels. Paradoxically, these two movements are both convergent and contradictory: is it possible to reconcile top-down and unilateral forms of communication with the expression of audiences seeking interactivity? This is one of the issues covered by this number on socio-technical display, packaging and labelling devices. Information materials for audiences are ambiguous spaces, often intersecting and combining the voices of regulators and actors in supply, law and the market. In order to address these media and to grasp the issues at stake, it is necessary to shed light on history, explore their forms, look at the layout of the different levels of registration (from display to labelling, packaging and signage), account be taken of the operation of public regulations and private initiatives, the investment of labelling by consumers as a place of consumerist information or political expression, or even examine the emergence of new information formats, largely supported by new technologies (smartphones, websites), which seem to emerge from the display of more than a century of one-sided and asymmetric communication in order to open it up to novel forms of interaction with users.