This is a masterful work on nonverbal body language by an exceptional observer. Joe Navarro's work has been field-tested in the crucible of law enforcement at the highest levels within the FBI. It's estimated that as much as 80% of our interaction with others is through non-verbal communication, or body language. And the vast majority of the nonverbal cues we display are driven by our subconscious mind they are important indications of how we are feeling and what we're thinking. Joe Navarro has been studying non-verbal behavior for the past 30 years. Today Joe is an internationally recognized expert, author, and gifted lecturer, in the interpretation of non-verbal behavior.