From the exhibition
Exercises in Parallel One-Point Perspective
Cooper Union Art School · 1880

This instructional sheet from Cooper Union Art School demonstrates fundamental techniques in linear perspective through architectural and spatial studies. The exercises progress from interior room views and street scenes to three-dimensional box forms and building studies, each rendered in careful line work. Students learned to construct convincing depth through vanishing points and receding lines—the foundational visual principles that would soon shape the emerging language of sequential art. These drills in spatial logic and compositional structure were essential training for artists working in all media, including the newspaper illustration and comic strip work that would define the medium's visual vocabulary.
Public domain, restored and presented by comicbooks.com CC0