The World Mapped: how 9 Diagrams shaped our understanding of reality

Three members of The Visual Agency view data-visualization posters at OMA’s “DIAGRAMS” exhibition.

Diagrams are far more than technical drawings or abstract symbols. They are visual frameworks that have shaped how we read the world — from the intricacies of the human body to the forces driving global economies.

Year:

December 15, 2025

Type:

Articles

Diagrams are far more than technical drawings or abstract symbols. They are visual frameworks that have shaped how we read the world — from the intricacies of the human body to the forces driving global economies. As part of our team education journey, we visited Diagrams: A Project by AMO/OMA at Fondazione Prada, an exhibition that reveals just how deeply these visual tools influence the way we think, decide, and behave. 

Across nine thematic areas, the exhibition shows how diagrams have become indispensable — and at times controversial — devices for translating complexity into understanding. 

1. The Built Environment: making structure visible

As cities grow more layered and dynamic, diagrams help decode how they function. They guide land surveys, visualize pollution patterns, and map the social structures that define urban life. Beyond documenting, they also shape action: from optimizing traffic to managing energy use. Yet the same tools can reinforce boundaries or legitimize exclusion when used with biased intent. 

Photo: Carte de la circulation des voyageurs by Charles Minard

Carte de la circulation des voyageurs by Charles Minard

2. Health: from ancient insight to modern imaging

For centuries, diagrams have framed our knowledge of the human body. From medieval Islamic anatomy manuscripts to state-of-the-art scans, they have influenced medical education, public health, and cultural narratives around disease. The exhibition highlights how diagrams not only reflect scientific paradigms, but sometimes challenge them — exposing the tension between data, belief, and evolving medical thought. 

Diagram of the Causes of Mortality by Florence Nightingale

3. Inequality: visualizing difference

Since the birth of social sciences, diagrams have mapped disparities in wealth, opportunity, and rights. They raise awareness and advocate for change — but they can also distort, oversimplify, or mislead. The exhibition revisits historic misuses, such as Lombroso’s pseudo-scientific criminology, revealing how easily visuals can embed prejudice under the guise of objectivity. 

Direction of money transfers in metropolitan Detroit 1971 by William Bunge

4. Migration: drawing movement

Migration is a fundamental feature of life, shaped by climate, politics, and survival. Diagrams have long traced these movements, helping us understand the forces behind displacement. Today, they model future flows triggered by global warming, conflict, and economic instability — transforming human movement into visual narratives that policymakers rely on. 

Top 10 Destinations of Students studying abroad from China versus from EU by AMO

5. Environment: mapping a fragile balance

As environmental crises intensify, diagrams become essential tools for illustrating natural systems and clarifying our relationship with the planet. They make data accessible, raise awareness, and support decision-making on issues such as climate change and biodiversity loss. Their strength lies in turning complexity into clarity — a critical need in today’s ecological landscape. 

6. Resources: the cost of progress

The industrial age brought unprecedented extraction of natural resources. Early diagrams tracked deposits and maximized production, reinforcing the idea of infinite growth. From the 1970s onward, they shifted focus: highlighting depletion, modeling scarcity, and guiding the transition toward renewable energy. Their evolution mirrors our changing views on sustainability. 

The world model 1972 by Meadows

7. War: the abstraction of conflict

Diagrams have long shaped military strategy — mapping troop movements, weapon ranges, and battle logistics. Today, AI-driven models simulate real-world attacks. But the abstraction inherent in these visuals removes the human dimension, obscuring the lived reality of both victims and combatants. The exhibit invites viewers to question what these diagrams reveal — and what they omit. 

Diagram of the Causes of Mortality by Florence Nightingale

8. Truth: navigating facts and interpretation

Across disciplines — from astronomy to religion to history — diagrams help structure knowledge and make the invisible visible. Yet in an era dominated by misinformation, their authority can be misleading. A diagram is not truth; it is an interpretation shaped by data quality, perspective, and intent. 

Theoretical diagram of Sun movements 1491 by Johannes de Sacro Bosco

9. Value: charting wealth

For over two centuries, diagrams have captured the mechanisms of economic value. From early trade maps to today’s cryptocurrency volatility charts, they visualize markets, forecast trends, and expose the flows of global capital. They illustrate not only how value is measured, but how it is imagined, constructed, and questioned. 

Chart representing the increase of the annual revenues of England and France from mid 16th century to the end of the 18th century by William Playfair

Ultimately, the exhibition reveals that diagrams are not neutral. They influence policies, shape perceptions, and anchor collective memory. Their power lies in their ability to clarify — and their danger in their ability to distort. Understanding them means understanding the world they help us see. 

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