Mapmakers have simplified geography for as long as maps have existed. The earliest known examples, scratched into Babylonian clay tablets around 600 BCE, show rivers, cities, and boundaries without complete topography. Their makers included the information they needed and omitted the rest.
Later cartographers made the same choice with different tools and goals. Over time, they developed clearer principles for deciding what to leave out.
Ancient maps: utility first
Ancient maps served practical purposes. The Roman Tabula Peutingeriana, a fourth-century road map of the empire, stretched the Mediterranean into a narrow band so routes between cities had more space. It helped a traveler get from Rome to Constantinople even though it distorted the Greek coastline.
Medieval portolan charts showed coastlines with remarkable accuracy while leaving continental interiors blank. Sailors needed the next port, not details fifty miles inland. The omitted space kept the chart focused on navigation.
The overloaded era
During the Age of Exploration, maps became status symbols, encyclopedias, and propaganda. Eighteenth- and nineteenth-century examples filled space with decorative cartouches, sea monsters, topographic shading, and surveyed hamlets. Detail signaled knowledge and prestige, while blank space could suggest ignorance.
Industrial-era ordnance surveys and city plans packed in so much information that readers couldn't scan them quickly. A Victorian London survey could identify individual buildings, but the broader city pattern was harder to see.
Harry Beck and the diagram revolution
In 1931, London Underground engineering draftsman Harry Beck proposed a transit map that abandoned geographic accuracy.
Beck straightened Tube lines into horizontal, vertical, and 45-degree segments. He spaced stations evenly regardless of distance and reduced the Thames to one stylized curve. The diagram distorted geography but made the network easier to use.
The London Underground map showed that a transit diagram could prioritize connections over literal geography. Beck's design influenced transit maps around the world and helped establish abstraction as a practical cartographic tool.
Swiss Style and the design grid
The mid-twentieth-century Swiss International Style applied grid systems, clean typography, and negative space to graphic design. Josef Muller-Brockmann and Max Bill argued that removing material could improve clarity.
Cartographers used those principles to simplify maps, choose type with more care, and leave space empty. They treated maps as graphic design governed by composition, hierarchy, and restraint.
This philosophy runs through modern mapping interfaces. Look at Apple Maps or Google Maps at medium zoom: soft colors, restrained typography, generous empty space. These aren't accidental aesthetic choices. They're direct descendants of the Swiss Style, filtered through decades of user-interface research.
Tufte and the data-ink ratio
Edward Tufte's 1983 book The Visual Display of Quantitative Information introduced the "data-ink ratio," the proportion of ink that represents data instead of decoration. He argued for removing marks that don't carry data.
Applied to maps, this means: if a line doesn't tell you something about the city, remove it. If a color doesn't encode information, change it. If a label isn't readable at viewing distance, it's noise, not data.
Tufte's rules are strict, and not every map needs to follow them word for word. They did give designers a concrete way to question each remaining line, label, and colour.
For more on how this philosophy shapes modern map art, see our post on the art of minimalist map design.
The digital turn
Digital mapping tools made maps adjustable. A viewer can zoom, toggle layers, and switch colour schemes instead of accepting one fixed artifact.
The source data can remain complete while the viewer chooses to see roads, water, or every available layer. Modern map art depends on that transfer of editing choices from the cartographer to the viewer.
Vector tile systems such as OpenStreetMap provide geographic data as layers that designers can style. With the right tools, someone without cartographic training can choose what the map shows.
Where Inkroads fits
Inkroads draws from these traditions. The 44 themes use different palettes for the same city. The layer controls let you apply Tufte's data-ink principle by removing parks, buildings, or labels until the needed layers remain.
The resulting map follows the same old constraint: show what matters for this purpose and omit what doesn't. Inkroads applies that choice to a city, a palette, and a wall print.
Beck simplified the Tube for commuters, and Tufte simplified charts for readers. Inkroads uses related ideas to turn a familiar city into wall art.
Create a map of Paris, Tokyo, New York, or another city, then remove layers until the pattern you care about stands on its own.