<!-- SPDX-License-Identifier: MIT -->
<!-- SPDX-FileCopyrightText: 2025-2026 Marcus Quinn -->

# Chapter 6: Social Proof and Trust Signals

This chapter explores the various forms of social proof and trust signals that can be used to build credibility and increase conversion rates, from customer testimonials and reviews to case studies and trust badges.

## Chapters

- [Cialdini's Types](cro-chapter-06/01-cialdini-types.md) — The five types of social proof according to Robert Cialdini.
- [Customer Testimonials](cro-chapter-06/02-customer-testimonials.md) — Effective traits, collection timing, and placement strategies for testimonials.
- [Reviews and Ratings](cro-chapter-06/03-reviews-ratings.md) — Platform selection, implementation best practices, and handling negative reviews.
- [Case Studies](cro-chapter-06/04-case-studies.md) — Formats, best practices, and distribution for B2B and high-consideration purchases.
- [Numbers and Statistics](cro-chapter-06/05-numbers-statistics.md) — Using customer counts and performance stats to build relatable credibility.
- [Trust Badges and Security Seals](cro-chapter-06/06-trust-badges.md) — Categories, placement rules, and mobile optimization for trust signals.
- [Logos: Media and Customer](cro-chapter-06/07-logos.md) — Leveraging recognizable brands and media mentions for FOMO and trust.
- [User-Generated Content (UGC)](cro-chapter-06/08-ugc.md) — Sourcing and displaying customer-created content across platforms.
- [Implementation Roadmap](cro-chapter-06/09-roadmap.md) — Audit, gap analysis, and a phased approach to social proof implementation.
- [Advanced Tactics](cro-chapter-06/10-advanced-tactics.md) — Real-time notifications and personalization of social proof.
- [Psychology](cro-chapter-06/11-psychology.md) — Bystander effect, negative social proof, and the similarity principle.
- [Measurement](cro-chapter-06/12-measurement.md) — Engagement and conversion metrics for social proof effectiveness.
- [Legal and Ethics](cro-chapter-06/13-legal-ethics.md) — FTC compliance, GDPR, and the importance of authenticity.
- [Troubleshooting](cro-chapter-06/14-troubleshooting.md) — Strategies for when you have no social proof or customers won't provide it.
