Great review in the recent New Scientist edition by psychologists from the University of Chicago.
“When we recognize that gesturing occurs in all contexts, from parenting to our professional and social interactions, then we can take advantage of the benefits it offers. Therefore, the wide range of functions that gesturing serves make it a multipurpose cognitive tool”
But be warned: today’s technologies are interfering with our ability to make the best use of it.
Reference: New Scientist