Chapter 18

Storytelling with Maps

Maps as narrative. Learn how to combine interactive cartography with multimedia to tell powerful, data-driven stories that inspire change.

At a Glance

Prereqs: Chapters 02, 10 Time: 25 min read + 35 min build Deliverable: Story map outline

Learning outcomes

  • Plan a geospatial narrative with a clear question and evidence.
  • Choose visuals that match the message and uncertainty.
  • Write a short methods-and-limits statement for credibility.

Key terms

narrative, audience, evidence, annotation, uncertainty, citation

Stop & check

  1. What is the difference between storytelling and decoration?

    Answer: Storytelling ties visuals to a claim supported by data and methods.

    Why: A map should answer a question, not only look good.

    Common misconception: More layers equals more insight; clarity and relevance matter.

  2. Why include limitations in a story map?

    Answer: To prevent over-interpretation and build trust.

    Why: Spatial data has uncertainty, dates, and classification errors.

    Common misconception: Limitations weaken the story; they strengthen credibility.

Try it (5 minutes)

  1. Write a one-sentence story question (e.g., Where did flooding expand?).
  2. List 2 datasets that could serve as evidence (one should be imagery-derived).

Lab (Two Tracks)

Both tracks produce the same deliverable: a storyboard (6 panels) with titles, captions, and a cited figure list.

Desktop GIS Track (ArcGIS Pro / QGIS)

Create two maps (context + result) and draft the narrative captions and sources.

Remote Sensing Track (Google Earth Engine)

Export one imagery-derived figure (index/classification) and write captions that interpret it responsibly.

Common mistakes

  • Writing conclusions not supported by the map/analysis.
  • Omitting dates and sources.
  • Using misleading symbology or color ramps without explanation.

Further reading: https://www.ucgis.org/site/gis-t-body-of-knowledge

Geographic Inquiry: Asking Questions of Where

Before ever opening software, a GIS analyst starts with a question. "Where" is not just a coordinate; it is a relationship.

  • Concentration: Where is the phenomenon clustered?
  • Boundary: Where does it change sharply vs. gradually?
  • Uncertainty: Where is the data missing or biased?
  • Verification: Where would you stand on the ground to prove it?

📖 Narrative Cartography

Analysis is only half the battle. To be a successful GIS professional, you must be able to communicate your findings. Storytelling with Maps is the art of weaving geographic data into a compelling narrative arc—complete with a hook, a conflict, and a resolution.

The "Scrollytelling" Format: This modern web technique allows the user's scroll position to trigger changes on the map, focusing their attention on exactly what the narrator is describing.
Critical GIS: The Danger of a Single Story

Maps are powerful persuasion tools because they look objective. A well-designed "StoryMap" can convince a policy maker to fund a project or ignore a problem. But a story is always a selection of facts. By choosing what to show (and what to hide) to make the narrative "cleaner," are we acting as scientists or as propagandists?

🎨 GIS as an Art: The Narrative Arc

Great maps, like great novels, have a narrative structure. You start with the Setup (Context), introduce Conflict (The Problem/Data), and end with Resolution (Call to Action). Designing this flow is an art form—using color, scale, and timing to guide the user's emotional journey through the data.

Step 1: The Context

Start by setting the scene. Where are we in the world?

Step 2: The Data

Layer on the evidence. What problem are we seeing?

Step 3: The Call to Action

What should the reader do next? How can we solve this?

Global View
Local Heatmap
Solution Plan

🤝 Interdisciplinary GIS: Digital Humanities

Storytelling with maps has opened a new frontier in the Humanities. Historians now use "Deep Maps" to layer literature, census records, and old photographs onto a single place. Innovative Art History projects use GIS to map the social networks of Renaissance painters. This blends qualitative richness with spatial precision.

🗺️ The Five-Step Narrative Framework

Effective map narratives are not improvised — they follow a deliberate structure. Drawing from journalism, documentary filmmaking, and academic cartography, the following five-step framework will help you build a story that is both compelling and credible.

  1. Step 1 — The Hook: Open with a striking statistic, image, or question that makes the reader ask "Why?" (e.g., "One in four Houston residents lives in a flood-prone zone.")
  2. Step 2 — The Context: Establish the geographic setting. Show the study area at a regional scale before zooming in. Provide historical background.
  3. Step 3 — The Evidence: Present your data layers, analysis results, and imagery. This is the analytical core of the story. Cite every source.
  4. Step 4 — The Uncertainty: Acknowledge what the data cannot tell you. Discuss scale, temporal gaps, and classification errors. This builds credibility.
  5. Step 5 — The Call to Action: What should the reader do? Who should they contact? What policy should change? A story without a call to action is just a display.
📐 Design Tip: Each step in the framework should correspond to a distinct panel in your StoryMap. Use visual transitions (zoom, fade, layer toggle) to signal movement from one step to the next.

👥 Know Your Audience

The UCGIS Body of Knowledge defines Map Audience as "the people for whom the map is intended, to influence their understanding or actions" (CV-06-023). Designing without a clear audience in mind is the most common cause of failed map communication.

🏛️ Policy Makers

Need: Executive summary, clear recommendations, simple symbology. Avoid: Technical jargon, raw data tables.

🔬 Scientists

Need: Methodology, uncertainty estimates, data citations, reproducibility. Avoid: Oversimplification.

🌍 General Public

Need: Relatable context, emotional hook, clear legend, accessible language. Avoid: Dense statistics.

Before building your StoryMap, write one sentence: "My audience is ___ and they need to know ___ so that they can ___". This simple exercise will guide every design decision you make.

🎭 Regional Decisions: The Story You Tell

Scenario: You are a GIS analyst for the City of Houston. The city has commissioned a StoryMap about the 2017 Hurricane Harvey flooding. You have two datasets: (A) FEMA flood insurance claims by ZIP code, and (B) 311 service calls for flooded homes by exact address.

Your task: Decide which dataset to use as your primary evidence layer and justify your choice. Consider:

  • Which dataset tells a more complete story of the flooding's impact?
  • Which dataset poses a greater privacy risk to residents?
  • How does your choice of geographic unit (ZIP code vs. exact address) change the story the map tells?
  • What would you include in your "Uncertainty" panel for each dataset?

Write a 1-paragraph justification and share it with a classmate. Discuss whether you made the same choice and why.

Summary of Big Ideas

  • Driving Attention: Use bookmarks and pop-ups to guide the reader's eye.
  • Multimedia Integration: A map is better when supported by photos, videos, and scientific text.
  • Mobile-First Design: Ensure your StoryMap works on a phone as well as it does on a desktop.
  • Ethical Storytelling: Always cite your data sources and avoid "lying" with maps through manipulation of scales.
  • Know Your Audience: Design every element — color, scale, language — for the specific person who will read your map.
  • Acknowledge Uncertainty: A credible story map always includes a section on data limitations and what the analysis cannot prove.

Chapter 17 Checkpoint

1. What is the primary advantage of a StoryMap over a traditional paper map?

It allows for an interactive, multimedia narrative experience.
It is easier to print out for a report.

2. In "Scrollytelling", what triggers the changes in the map view?

The user clicking a "Next" button.
The user scrolling down the page.

3. According to the Five-Step Narrative Framework, what is the purpose of the "Uncertainty" step?

To make the story more dramatic by highlighting what is unknown.
To build credibility by acknowledging the limitations of the data and analysis.
To confuse the audience so they ask more questions.

4. When designing a StoryMap for a policy maker, which of the following is MOST important?

Including all raw data tables and statistical outputs.
Using the most complex symbology available to show expertise.
Providing a clear executive summary with actionable recommendations.

5. What is "Cartographic Silence" in the context of narrative mapping?

The intentional or unintentional omission of data or communities from a map, which shapes the story being told.
A technique to remove all text labels from a map for a cleaner look.
The use of white space in map design.

📚 Chapter Glossary

Story Map A web-based application that combines interactive maps with multimedia content (text, photos, video, audio) to tell a story.
Scrollytelling A user interface technique where scrolling down a web page triggers dynamic changes in the map or visualization, guiding the user's attention.
Thematic Map A map designed to show a particular theme connected with a specific geographic area (e.g., population density, climate), as opposed to a general reference map.
Narrative Cartography The practice of combining maps with storytelling techniques to communicate geographic data in a compelling, structured, and audience-focused way.
Map Audience The people for whom a map is intended, whose needs, background knowledge, and goals should guide every design decision (UCGIS BoK CV-06-023).
Call to Action The final element of a narrative map that directs the reader toward a specific response — a policy change, a donation, a vote, or further research.
Deep Map A layered, multimedia map that combines spatial data with historical records, photographs, oral histories, and literature to create a rich, multi-dimensional portrait of a place.
← Chapter 17: Mobile GIS Next: Chapter 19: GIS Ethics →

BoK Alignment

Topics in the UCGIS GIS&T Body of Knowledge that support this chapter.