It has probably happened to you several times: Talking to someone, disagreeing on an issue, and trying to change their mind. — Persuasion is a key skill for everyone — and can help you in business. In his book, The Catalyst, Jonah Berger, a marketing professor at Wharton Business School, offers some techniques and strategies for changing one’s mind. One strategy may seem contradictory, but it is excellent: People with strong persuasions…