*''Agent of Influence: How to Use Spy Skills to Persuade Anyone, Sell Anything, and Build a Successful Business'' by Jason Hanson. Dey Street Books (June 4, 2019)
== Books ==
[[Image:Cicero statue head.jpg|thumb|right|120px|Marcus Tullius [[Cicero]] ]]
== Books ==
''See also:'' [[Cicero]]