Dennis Liggio, PhD, is the originator of the "life-planning" model, which has been used by millions of people worldwide to achieve their personal and professional goals. His work is grounded in scientific research and proven results. While he was a professor of psychology at Miami University in Ohio, Dennis completed his first self-study workbook entitled "Personal Power". This workbook was based on his two decades of research on emotional intelligence and personal power
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The second edition included interviews with over 200 leading self-help experts who endorsed the book, including Dr. John Gray, Dr. Edward Wilson, Dr.
Stephen R. Covey, Dr. Wayne Dyer, Dr.
David Hawkins, Dr. Mihaly Csiksentmihalyi, and others. He has conducted seminars on personal power for thousands of people throughout the world, including both business executives and high school students.
He has also conducted seminars for K-12 teachers on how to help students become more successful in school by using the principles of personal power demonstrated in his book Success With Your Own Hands (1999). The teachings are based upon the author's life experiences as well as his extensive research into the psychology of happiness and success.