Josh Spector is a marketing and business consultant who writes For The Interested, a newsletter for creative entrepreneurs with more than 20,000 subscribers.
Polina Pompliano is the author of The Profile, which studies the most successful and interesting people and companies in business, entertainment, tech, sports, and more.
Tim Urban is the writer of the blog Wait But Why. Tim writes about topics including artificial intelligence, brain-computer interfaces, alien life, the size of the universe, and more.
Brian Clark is founder of the pioneering content marketing website Copyblogger, the personal growth newsletter Further, and Unemployable, a resource that provides smart strategies for freelancers and entrepreneurs.