the explanations given by Eric Goulard are within the reach of all. Easy to read c 'and good support to address non-verbal communication. based on "researchers" of international renowned (Gentlemen Ekman, Matsumoto, Navarro ect.) He has put within the reach of everyone a complex discipline. Significant aspect is an easy contact person with whom it is pleasant to share. I strongly advice to read. (After it's everyone to work the subject to regain profits ...) Mr Goulard thank you for this book (2014 and strongly for your new publication ...)