This volume, edited by G. Pagnano, presents a broad investigation into the graphic analysis and historical evolution of representation in architecture and visual culture. It examines how drawing, diagramming, and other graphic tools have shaped the conception and communication of space, from early perspectives and planimetric thinking to modern modes of visualisation and digital practices. With contributions spanning historiography, methodology and case‑studies, the work engages with the history of representation as a disciplinary pivot. Its structure combines analytical essays and illustrative material, offering a resource for researchers in architectural history, visual studies and representation theory.