How to Grow as a Sustainable Sales Talent in the AI Era: Practical Mindsets from a 30-Year B2B Sales Expert You've learned sales skills, but why are your results stagnant? Communication styles and techniques become outdated over time. Sustainable performance comes from a thorough mindset and professionalism as a salesperson. We present the living, 30-year practical mindset of CEO Park Ju-min, author of Korea's first B2B cold-calling sales book 《Promise》, winner of the 'Top 100 Salespeople Who Shined at Samsung Electronics' award, and selected as 'Korea's 229th Master Instructor.'