Trust, in the Manifesto, is the understanding that a person has good intentions, will follow through, and makes claims that are accurate. Credibility is built through the consistent exchange of influence: other credible people and outlets speaking for you.
Every opportunity can be judged on two measures: visibility, how large the opportunity is, and edification, the quality of the endorsement it carries.
Credibility is built through the consistent exchange of influence through forms of edification.
Personal Branding: A Manifesto on Fame and Influence, Second Edition, 5.4
How to Build It
Associate With Top PerformersBeing seen with leaders in your field is a public display of competence. Unusual collaborations across fields build rapport too.
Collect Testimonials and EndorsementsWritten and video, from people large and small.
Get Into the MediaLet outlets know when you have done something newsworthy, and get on the radar of journalists who cover your field.
Pitch as a Peer, Not a FanApproach people above you at or near their level, briefly, with a reason that serves them.
Announce Accomplishments With Balanced PrideShare why it matters and what comes next, without flaunting.
Putting It to Work
The moves ISIA, the engine behind the Brand Audit, draws from this part of the doctrine. Each one is something you can do this month, and the reason it matters.
Collect written or recorded testimonials from the last ten people...Collect written or recorded testimonials from the last ten people you helped, while the result is still recent enough to be specific.Why: The answer given on this audit question is the situation this action was written for.Credibility
Collect Testimonials From Everyone You Have HelpedAsk the last ten people you helped for a written or recorded testimonial while the result is still fresh. Include people large and small.Why: Credibility is the trust that your claims are accurate and you follow through. Testimonials are that trust in someone else's words.Credibility
Get on Journalists' RadarFollow the reporters who cover your beat, read their work, join their lists, and watch for source requests. Reply fast with something quotable and accurate.Why: Coverage is earned, and the first step is being reachable by the people who write it.Credibility
Approach Five Peers Above YouIdentify five people one level ahead and approach each with a specific, useful offer as a peer.Why: Association with top performers transfers credibility.Credibility
Where It Comes From
Source
Personal Branding: A Manifesto on Fame and Influence, Second Edition (Mashman Publishing, 2025)
How do you build credibility for a personal brand?
Through visibility and edification: association with credible people, testimonials, earned media, and accomplishments that demand attention, such as a book, a program, or a business.
Can credibility be bought?
No. The Manifesto is explicit that purchased followers and paid placements dressed as editorial coverage are not credibility. MCG's standard is that editorial coverage is earned, never bought.
In Isaac's Words
From the Interviews, on Building Credibility.
Advice Isaac Mashman has given on his own shows and in interviews on this subject, from the same library MCG consultants work from. Each one keeps the words he said it in, and links to the transcript where there is one.
Credibility
Earn Credibility You Could Defend Line by Line
Go through every number and claim on your profiles and ask whether you could show how you earned it. Remove anything you could not defend in front of the people it was meant to impress.
“you cannot fake credibility”
Unrivaled Results with Mashman Ventures, “UNRIVALED: Personal Branding Training”, April 13, 2022
Credibility
Do Not Call Yourself an Expert Before You Are One
Remove expert, guru, or master from your bio unless your hours and results back it. Describe your experience in plain, checkable terms instead.
“are they really experts”
Chase the Vision with Isaac Mashman, “Are You A Business Owner Or Unemployed With A Title?”, July 13, 2020
Your name is already being interpreted. The question is who are they, and what are they thinking?
Engagements are accepted by application and seats are limited each quarter. Tell us who you are, what you are building, and the position you intend to hold.