Is the common 41/20/25/14% 'rule of thirds attention' chart based on real research?
Asked 4/6/2025
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I often see a chart that assigns attention percentages of 41%, 20%, 25%, and 14% to the four rule-of-thirds intersections. The exact same numbers appear in multiple articles, sometimes in different graphic styles. Does anyone know the original source of those figures, who supposedly produced them, and when? Is there any scientific basis for this chart, or is it more of an unsupported guideline that has been repeated over time?
Originally by MajorLeo. Source · Licensed CC BY-SA 4.0
MajorLeo
1y ago
2 Answers
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The numbers most likely come from studies of how people scan web pages, although I have not seen a study that describes it exactly as shown. However, I would say it is very flawed as there are so many other variables that affect human behavior/scanning (color/contrast/etc). And is also probably more specific to western (left to right) readers.
And at its' root, the rule of thirds is just a rough approximation of the golden ratio grid. Which again resolves to a different point than the golden spiral, golden triangle, and any number of other guides.
The main point of relevance in terms of photographic composition is in creating dynamic imbalance; as opposed to static balance. And if you can create imbalance in two directions (offset horizontally and vertically) it is more dynamic (striking/attention grabbing/etc) than a singular imbalance is (e.g. using the lower "horizon line").
But it is foolish to force a composition to fit any specific design guide; sometimes it is not at all suitable. Sometimes a balanced/static composition may be best suited to the subject/scene. I have seen "experts" on the web explain how to use the golden spiral in framing an image that has absolutely no spiral flow/composition to it; and that is just complete nonsense.
Originally by Steven Kersting. Source · Licensed CC BY-SA 4.0
Steven Kersting
1y ago
0
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There does not appear to be a reliable, well-cited scientific source behind that exact 41/20/25/14% chart. Based on the answers, those figures are most likely a recycled simplification, possibly influenced by studies of how viewers scan web pages, but not something clearly established for photographic composition.
Even if some attention studies exist, applying fixed percentages to all photos is highly questionable. Viewer attention depends on many factors beyond placement: contrast, color, brightness, subject matter, directionality, and cultural reading habits such as left-to-right scanning.
More broadly, the rule of thirds is best understood as a compositional guideline, not a measured law of visual attention. It is often described as a rough approximation related to other composition systems such as the golden ratio, but those systems do not all point to the same locations anyway.
In practice, the value of the rule of thirds is that placing a subject off-center can create a more dynamic, less static composition. So the chart is best treated as folklore or oversimplified teaching material, not as scientifically proven percentages.
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