Chelsea Guglielmino/Getty Images
Serial entrepreneur Gary Vaynerchuk built an advertising empire over the past 15 years by helping companies like PepsiCo and Mondelez jump on social media trends.
Chelsea Guglielmino/Getty Images
Serial entrepreneur Gary Vaynerchuk built an advertising empire over the past 15 years by helping companies like PepsiCo and Mondelez jump on social media trends.
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