Short Summary
Main recommendation: use simple, deliberately "ugly" sketches, visual metaphors, and series of varied images to invite collaboration instead of bombarding people with polished, bullet-point slides. Speaker Martin J. Eppler says these visual practices boost creativity, communication, conflict handling, and decision quality. The talk presents three practices that help people visualize thinking together.
Key Points
- Polished visuals can shut down discussion, because people look at a finished-looking image and assume no revision is needed; Eppler calls this the "museum effect."
- Signaling that a visual is provisional, through sketches, doodles, or rough lines, invites others to contribute; Eppler calls the technical idea "low perceived finishedness."
- Visual metaphors access what people already know and make complex information concrete. In one case, a single "fortress built on sand" image replaced 40 data-driven slides and shifted the client conversation toward collaboration.
- In a study done with BMW Financial Services staff, the same strategy shown as a mountain trail metaphor was remembered better and motivated implementation more than bullet-point slides or a diagram.
- Visual variation, repeating a metaphor with slight changes, prompts people to extend the series with their own ideas, drawing on variation theory: you don't understand something until you understand it in more than one way.
Details Worth Noting
- Concrete instructions:
- Make visuals intentionally rough: use sketches, doodles, or pencil-style drawings, and avoid polished designs when you want feedback.
- Lead a discussion with one visual metaphor for an overview, then show detailed analysis on demand, as the speaker did with the "fortress built on sand" image.
- Choose metaphors that are simpler than the topic, concrete, and familiar to your audience. Eppler warns to avoid metaphors that carry unintended connotations for the audience, citing his volcano metaphor used in a country at risk of volcanic activity.
- Start a simple image series, such as a bridge with different problems (one-way street, misalignment, overcrowding, going off the bridge, shaky bridge), and invite others to add new variations.
- Ask colleagues to build on your starting image rather than delivering a single overloaded visual.
- Eppler mentions that banks, telecom companies, and insurers use "pencil selling," sketching products by hand for clients, and that in his experiments this led to better sales than shiny slides.
- He also notes that even small software tweaks that make charts look more sketchy improved collaboration and creativity in experiments.
- The speaker's "red carpet" and "red thread" metaphors describe inviting others to visualize together and to keep the conversation connected.
Bottom Line
Eppler's core point is that rough, provisional, and metaphor-based visuals open up conversation in ways polished slides cannot, and building a series of visuals lets others co-create the thinking.





