Micro expressions: if you can read them, you are at a significant advantage in business and life.  I watch a show called Lie to Me on Fox.  The story is built around a character who can detect lies primarily based on facial expressions.  After doing some research, I discovered the source of the science behind the script, Dr. Paul Ekman.  He has developed a system of reading facial expressions, which transcends both language and culture. 

Here is one of the promo videos for the show that does a very good job explaining what I am talking about:

I have purchased Paul Ekman's book Unmasking the Face: A Guide to Recognizing Emotions From Facial Expressions and the METT Advanced-Online course from his website.  Though, I have studied several books on body language from CIA based materials to academic type authors, micro expressions seem to be a superior--purely because body language is easier to disguise.  Whereas, micro expressions from what I can gather are exceptional hard to mask or fake, especially under pressure.  That being said, I did purchase The Definitive Book of Body Language as well.  When doing my initial research, the book was recommended in an article about Paul Ekman.

Below is a 10 minute video that serves as the perfect elevator for Paul Ekman's work.  It also explains that a team of scientists are developing automated facial recognition software based on Ekman's research.  That raises an eyebrow, doesn't it?