The second chapter of the exhibition at Prada Rong Zhai gathers more than 150 items sourced from the 12th century to the present day and drawn from various geographical and cultural contexts. The project benefits from the extensive research conducted by Fondazione Prada in close collaboration with Rem Koolhaas and Giulio Margheri, Associate Architect at OMA. Materials are displayed according to a thematic principle that reflects some main contemporary world urgencies and demonstrates the diagram’s transversal nature through five thematic sections: Built Environment, Body, Resources, Truth, and Value. Within each section, diagrams appear in a wide range of formats and media—drawings, books, prints, and digital contents—to highlight the evolution of data communication and how these instruments have adapted over time to different contexts, technologies, and audiences.