“Statistics suggest that when customers complain, business owners and managers ought to get excited about it. The complaining customer represents a huge opportunity for more business.”

American motivational speaker and author of the mid-to-late 20th century, Zig Ziglar was best known for his uplifting approach to personal development and sales motivation. His work emphasized positivity, goal-setting, and the power of attitude, blending practical advice with inspirational storytelling.