David Jack

Location: California, United States

David Jack is the 7th generation entrepreneur and author of 6 bestselling business books. Along with this, he is the founder of 5 multi-million dollar companies. He has been helping audiences gain customers through word-of-mouth marketing and content marketing. He is also known for the world’s most influential marketing and customer service speaker. Visit - https://www.contactavast.com/how-to-turn-off-or-disable-avast-antivirus/