Stephen Few / Perceptual Edge — full legal white papers
Legal source: https://www.perceptualedge.com/library.php (author-hosted white papers / PDFs). Read in full via official PDF URLs. These sit in the same design lineage as Tufte (clarity, remove chartjunk, accurate encoding).
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1. Common Pitfalls in Dashboard Design
- - URL: https://perceptualedge.com/articles/Whitepapers/Common_Pitfalls.pdf
- - Author: Stephen Few (Perceptual Edge), February 2006; ProClarity-sponsored edition
- - Read in full: Yes
- - Definition used: A dashboard is a visual display of the most important information needed to achieve one or more objectives, consolidated on a single screen so it can be monitored at a glance.
- - Monitoring process dashboards must support: (1) see the big picture; (2) focus on items needing attention; (3) drill to action.
- - 13 pitfalls (principles as avoidances):
1. Exceeding a single screen (scrolling/fragmentation destroys simultaneity)
2. Inadequate context for measures (compared to what? good/bad?)
3. Excessive detail or precision
4. Expressing measures indirectly (show variance/percentages when that’s the need)
5. Inappropriate display media (wrong chart type; pie when bars work)
6. Meaningless variety
7. Poorly designed display media
8. Encoding quantitative data inaccurately
9. Poor arrangement of data
10. Ineffective highlighting of what’s important
11. Cluttering with useless decoration
12. Misusing or overusing color
13. Unappealing visual display
- - Key principle: Flash sells; clear/accurate/efficient design is what gets used after the novelty fades.
2. Effectively Communicating Numbers: Selecting the Best Means and Manner of Display
- - URL: https://www.perceptualedge.com/articles/Whitepapers/Communicating_Numbers.pdf
- - Author: Stephen Few, November 2005; ProClarity-sponsored edition
- - Read in full: Yes
- - Principles:
- Graphicacy is learned, not intuitive; most business graphs miscommunicate unintentionally.
- Always ask “Compared to what?”—numbers gain meaning in relation.
- Tables vs graphs: tables for lookup/precise values; graphs for shape (patterns, trends, exceptions).
- Quantitative vs categorical data; categorical scales: nominal, ordinal, interval.
- Seven common relationships: time-series, ranking, part-to-whole, deviation, distribution, correlation, nominal comparison.
- Best quantitative encodings: length and 2-D position (points, lines, bars, boxes); avoid 2-D area (pies/bubbles) when precision matters.
- Lines only along interval-like scales; bars require a zero baseline (else use points).
- Remove anything that doesn’t contribute meaning (distraction).
- Six-stage design process: message/data → table vs graph → encoding → variable placement → remaining object design → featuring important data.
3. Visual Communication: Core Design Principles for Displaying Quantitative Information
- - URL: https://www.perceptualedge.com/articles/Whitepapers/Visual_Communication.pdf
- - Author: Stephen Few, September 13, 2006
- - Read in full: Yes
- - Principles (seven core):
1. Display neither more nor less than what is relevant to the message (no chartjunk / no missing essentials).
2. Do not include visual differences that do not correspond to data differences.
3. Prefer length or 2-D location to encode quantities (preattentive attributes; size/intensity only for rough approximations).
4–7. (Continuing perceptual rules in the paper:) design for how people see and think; match message first; use perception-based rules so important patterns stand out—otherwise displays mislead or become incomprehensible.
- - Framing: Graphs exist to reveal relationships invisible in tables; vision is the highest-bandwidth sense but has rules (Gestalt/Ware lineage).
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Also located (not required beyond 2–3; not fully logged here)
Library lists additional legal white papers (e.g., Dashboard Design for Real-Time Situation Awareness). Three full papers above meet the 2–3 white-paper target.
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Not obtained
- - Show Me the Numbers (Few) — commercial book; not pirated.
- - Information Dashboard Design (Few) — commercial book; not pirated (white paper notes it expands beyond the pitfalls paper).
- - Now You See It and other Few monographs — commercial books; not pirated.