In 2010 a newer dictionary of gestures was made, the Author (Fabio Caon) also made a set of videos of the gestures (there was a DVD attached to this new dictionary), and published them as videos on youtube, links on his page here (Italian):
I have that book. Caon was my SO's thesis advisor.
The interesting part about that book is that it also points out whether the gesture has a different meaning in other cultures. For example it says the gesture for "OK" that you do by making a circle with your thumb and index finger has a vulgar meaning in Russia (iirc).
https://www.itals.it/gesti-degli-italiani