Top 99 keynote speakers every event planner must know about
Hubilo Blog
FEBRUARY 25, 2020
The book has influenced many companies, ad agencies, design firms, and consultancies, which have adopted a cultural approach to branding. Jonah Berger is a marketing professor at the Wharton School at the University of Pennsylvania and internationally bestselling author of Contagious , Invisible Influence , and The Catalyst.
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