Billions of dollars are spent annually in North America on promotional items such as T-shirts, pens, hats, and calendars by companies that give these promotional items away to existing and ...
Science shows people hate bragging. It also shows laughter is a great way to slip in some self-promotion without annoying ...
John, Leslie K. "Savvy Self-Promotion: The Delicate Art and Science of Bragging." Harvard Business Review 99, no. 3 (May–June 2021): 145–148.