This self-help book is designed for those who wish to improve their ability to persuade others. Maintaining that these skills can be learned in a scientifically exact way, Mortensen, who has been teaching persuasion skills as an independent consultant for years, uses an "IQ" test to measure an individual's aptitude for persuasion, and then shows readers how to get results by understanding how others think and then establishing rapport and trust. The author also explains the main obstacles to persuasion, such as talking too much or being motivated by desperation. Additional resources and links to the author's website are also included. Annotation ©2009 Book News, Inc., Portland, OR (booknews.com)