Rhetorical Appeals
Ethos: Third-Party Endorsements
Boost credibility by citing respected sources, experts, or satisfied clients.
What it is
Before & after
“Self-promotion only: "I believe this is the best solution available" (no external validation)”
“Third-party validation: "Industry leader Microsoft implemented this approach and saw 40% productivity gains, as documented in their recent case study"”
When you’ll use it
Sales presentations: Including client testimonials and case studies that validate product effectiveness and service quality
Consulting proposals: Referencing endorsements from previous clients and industry recognition or awards received
Team recommendations: Citing expert opinions, research studies, or industry best practices to support proposed strategies
Performance reviews: Including feedback from colleagues, clients, or other departments to support self-assessments
Pro tip
Name specific sources and quantify their authority or results.
Questions & answers
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Practice this concept
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