Calvin is a dude who has gone through several frustrations and struggles–just like EVERY entrepreneur does. If he could have won an award for the worst salesman in his phone sales company, he would have won it. Calvin went from one of the worst salesman his boss/mentor has ever seen to being in the top 3 salesman out of 2oo in his company. Not only is Calvin a master salesman and entrepreneur but he is also a rising Periscope marketing expert.