Zig Ziglar, uno de los conferencistas motivacionales mas solicitados de los Estados Unidos, transmite su mensaje de humor, esperanza y entusiasmo a audiencias de todo el mundo. Ha escrito numerosos libros que han alcanzado categoria de exito de libreria a nivel mundial.

Tom Hopkins was a millionaire by the time he was twenty-seven. He began his career as a real estate agent (failing miserably and earning $42 a month). After investing his last few dollars in a sales training seminar, Tom quickly rose to the nation's number one sales position setting records that still stand today. Believing sales people are made, not born, Tom has dedicated his professional life to training and inspiring people to achieve their highest potential.