A reader who doesn't trust you within the first few paragraphs is unlikely to trust the offer later on, which makes early credibility-building essential, not optional.
Establish Why You're Qualified to Solve This Problem
A brief, specific statement of relevant experience or results gives the reader a reason to keep listening.
Use Specific Numbers Over Vague Claims
"Helped over 4,200 small business owners" builds more trust than "trusted by thousands," because specificity is harder to fake.
Let Third-Party Proof Do Some of the Work
A brief mention of media coverage, credentials, or a well-known client early in the letter reinforces credibility without requiring you to oversell yourself.
Next step: Use the Sales Letter Writer to draft credibility-building copy that fits naturally into your letter's opening section.