Complex sentence: The use of body language has also seen an increase in application and use commercially, with large volumes of books and guides published designed to teach people how to be conscious of body language, and how to use it to benefit them in certain scenarios.
Split into simpler sentences: The use of body language has also seen an increase in application and use commercially. There are a large volume of books and guides published designed to teach people how to be conscious of body language, and how to use it to benefit them in certain scenarios.