Gary Vaynerchuk is a Belarusian American entrepreneur, author, speaker and internet personality. First known as a wine critic who expanded his family's wine business, Vaynerchuk is best known for his work in digital marketing and social media, leading New York–based companies VaynerMedia and VaynerX. Gary is a highly sought after public speaker, a 5-time New York Times bestselling author, as well as a prolific angel investor with early investments in companies such as Facebook, Twitter, Tumblr, Venmo, and Uber.