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6. Good & Bad Maps

Abstract

Outlines the foundational principles for creating compelling and accurate data visualizations. These principles are grounded in cartographic theory, information design, and empirical research in visual perception.

There are lot of heinous maps out there that are cluttered, trying to convey too much information, insist on a north arrow or take a long time to interpret. Although admittedly, the ArcGIS pro layout interface is easier to use than QGIS, let’s ignore that and just borrow some great layout suggestions from John Nelson. See John Nelson Maps on YouTube for more cartographic suggestions and genius from John.

These are adapted from John Nelson’s ArcGIS Pro Layout Makeover and provide a excellent foundational principles for creating a strong map layout.

  1. Balance the composition

  • Prioritize map size

  • Area of interest best fit = layout orientation

  • Use surrounds as balacing agents

  • Use layout guides

  1. Organize & distill text

  • Only key words as title

  • Secondary context as pre-title or sub-title

  • Eliminate, distill, or defer paragraphs

  • Integrate annotation (selective bolding of key ideas)

  • Professional attribution

  1. Simplify the surrounds

  • Remove unnecessary borders, backgrounds, and neatlines

  • Simplify:

    • the legend (or integrate it into the title or chart)

    • the overview

    • north arrow or remove it

    • scalebar or remove

  • Remove photographs or their backgrounds

Let’s explore some of the details of these principles and suggestions with an example.