Launched by the e2 group, an association of young architects and urban planners involved in various research projects surrounding the theme of inert-space in urban contexts, the e2 contest was accompanied by the publication of the e2 book, which retraced the adventure. Physical voids in urban territory, these "inter-spaces" include all the undefined places that generate a feeling of strangeness or ambiguity, and which have exceptional potential for architectural research and design. The jury was composed of the following members: Dominique Perrault, architect - Michel Desvigne, landscape designer - Frédéric Migayrou, Chief Curator of Architecture & Design at the Pompidou Centre - Francis Rambert, journalist, critic - Albert Ferré, designer with Actar editions - Stéphane Couturier, photographer. The exhibition presents 350 projects: the 5 winning projects chosen by the jury, the 25 projects short-listed by the technical commission, the 66 other projects selected by the technical commission, and the remaining 254 submissions.