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CASSANDRE, ARCHITECT OF VISION: Geometry as the Foundation of Modern Poster Design

  • Photo du rédacteur: ROLAND MOURON
    ROLAND MOURON
  • il y a 6 jours
  • 3 min de lecture

Dernière mise à jour : il y a 6 heures

A.M.Cassandre did not draw by instinct. Trained in architecture, nourished by Cubism and influenced by Bauhaus thinking, he conceived his posters as complete geometric systems. His work, far from personal lyricism, obeyed an imperious logic: to build in order to communicate. Behind each image, a plan. Behind each plan, a thought.


I. Rigor as inheritance: from Auguste Perret to the poster


Before becoming a poster artist, Cassandre was a painter trained at the Académie Julian. There he discovered architecture, which he later considered as the superior art. It is no coincidence that his house-studio in Sèvres was designed by Auguste Perret, one of the great theorists of exposed structure. As the latter wrote: "Architecture is the art of making the supporting points sing."


This experience was foundational. Cassandre discovered that beauty does not come from decoration but from the framework. From then on, his posters became blueprints, constructed with square, compass, and protractor—an engineer's vocabulary in service of a visual vision.


II. The Cassandre method: system, module, monumentality


Functional geometry

In a text published in 1926, Cassandre asserted that the poster cannot be a lyrical or expressive work: "The poster is a mass-produced object, intended to fulfill a function."

His approach was radically anti-individualistic, influenced by Cubism and the communitarian thinking of the Bauhaus. He rejected style as signature, preferring logical construction to graphic virtuosity. He wrote: "Faithful to my geometric method, or more precisely architectural, I strive to ensure my posters have an undeformable 'solid foundation'."

To his draftsman, he imposed a repeated module that structured the entire composition. He forbade the squaring method: rigor took precedence over adaptation.


L'Intransigeant: the masterpiece of the system


1925 advertising poster by A.M.Cassandre for L'Intransigeant newspaper. Geometric composition featuring a stylized male profile with oversized ear, crossed by converging telegraph lines. Monumental typography in white capitals over colored gradient background. Emblematic example of Cassandre's architectural and constructivist approach to modern poster art.
L'INTRANSIGEANT 1925  A.M.CASSANDRE, "He subjects his drawing to a mathematical construction [...] comparable to an architectural section."

A foundational poster, L'Intransigeant (1925) embodies this thinking. Every line is deliberate, every tension calculated. The elongated neck of the figure forms a dynamic vector, the telegraph wires converge toward the ear, the mouth is inscribed in a perfect circle, and the entire head within a square.


Diptych presenting the 1925 L'Intransigeant poster by A.M.Cassandre and its geometric analysis. analytical diagram revealing the underlying geometric construction with circles, squares, triangles and directional vectors superimposed on the original design. Demonstration of Cassandre's architectural method applied to modern poster art.
Geometric Decomposition of L'Intran

III. The architecture of the word: letter and composition


For Cassandre, the poster always begins with the text. The word precedes the drawing. It is the letter that, in his words, "sets in motion the mechanism of mental creation."


His typography, which he wanted to be monumental and lapidary, drew inspiration from ancient inscriptions. He rejected lowercase letters, considering them as "manual deformations of the monumental letter."


The poster thus becomes a space rhythmed by the word, like a facade by its openings.


IV. Modern rhythm: from Le BUCHERON to the machine


Cassandre considered advertising as an urban fresco. He wanted to break away from the small sidewalk poster. In his view: "The 80 x 120 is nothing more than a business card."


Advertising poster by A.M.Cassandre for Au Bûcheron store. Geometric composition depicting a stylized lumberjack in action, axe raised, in a refined Cubist style. Angular masculine figure with simplified geometric forms, integrated into a dynamic triangular composition. Sans-serif typography in black capitals on colored background. Example of Cassandre's constructivist approach applied to commercial advertising, translating the idea of strength and robustness through pure geometry.
AU BUCHERON 1923 A.M.CASSANDRE

With works like Le Bûcheron or L'Étoile du Nord, he conceived the poster as a repeatable motif, a "monumental wallpaper" whose repetition produces a rhythm, an urban cadence.


1927 advertising poster by A.M.Cassandre for Compagnie des Wagons-Lits, Étoile du Nord railway service connecting Paris to Brussels and Amsterdam. Vertical composition dominated by an imposing stylized locomotive seen from the front, represented by monumental geometric forms in blue-black and cream gradients. At the top, a white star symbolically guides northward across a gradient sky. Converging rails in perspective creating a dramatic depth effect. Art Deco typography in gold and white sans-serif characters, featuring "PULLMAN" and European destinations. Lateral framing repeating the company name. Masterful synthesis between industrial power and luxury travel elegance.
ETOILE DU NORD 1927 A.M.CASSANDRE

The choice of subject is never decorative: it is about translating a function, a clear idea, with the force of line and the precision of stroke.


V. From calculation to icon: geometry and timelessness


In the 1930s, stylistic evolution was accompanied by a softening. But Cassandre never abandoned his system. Even in more "sensual" compositions, geometry underlies the drawing. Starting with L'Atlantique, Normandie, Dubonnet, Nicolas, he combined rigor and humor, system and style.

"He subjects everything to geometry, but the geometry is not visible. It guides." (Alain Weill)



VI. Conclusion: The constructed gaze


The poster, for Cassandre, is neither a painting nor an anecdote. It is an edifice of signs, a mental and graphic construction. He implemented an aesthetic of refinement, a discipline of line, an intelligence of form. What he sought was the clarity of an order perceived by the crowd, not the expression of a self.


"Always more sensitive to form than to color, to composition than to detail [...] I find myself, as a poster artist, remarkably at ease." (A.M.Cassandre, 1926)


📚 Sources

  • Henri Mouron, Cassandre, Schirmer Mosel

  • Alain Weill, interviews (compiled excerpts, 1985-2023)

  • Geometric analysis of L'Intransigeant, ATELIER Cassandre

  • Original texts by A.M.Cassandre, Revue de l'Union de l'Affiche Française, 1926

  • Sylvia Colle-Lorant, Thesis on Cassandre


📌 To go further:

  • Discover the complete history of the Dubonnet poster in our gallery.

  • Learn more about A.M.Cassandre's life and graphic innovations.

  • Explore other iconic posters in the original poster gallery.

  • ✍️ Editorial content from cassandre.fr – reproduction prohibited without authorization.

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