What is the importance of body language in communication?

In a business/sales presentation, the other party will assimilate the following

Approximate statistics : 

1. Content (around 16%)
2. Voice Tone (around 24%)
3. Body Language (around 60%)

What gestures and style used will transfer messages subliminally to the other party wherther to trust you, buy from you, or even listen to you.

It is a great advantage in lie.  In work for example it can reveal to you many of the things you cannot see when people talk therefore it can reveal the personality of people and how they look at you and how influence they are.