Supported by the following organizations
This is to certify that David McCullough successfully completed and received a passing grade in SellingIdeas101x: Selling Ideas: How to Influence Others, and Get Your Message to Catch On a course of study offered by Wharton, an online learning initiative of The Wharton School of the University of Pennsylvania through edX.
Noted by
Jonah Berger
Associate Professor of Marketing The Wharton School
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- Professional Education Certificate Issued November 7, 2018
- Valid Certificate ID 157608277a38499b8f0b50c11f035f38