^St. Hilaire, Chris; Padwa, Lynette (2014). 27 Powers of Persuasion : Simple Strategies to Seduce Audiences and Win Allies, Prentice Hall Press. BiggerBooks. ISBN 9780735204515 (revised Nov 2023)
^Hilarie St (2012). 27 Powers Of Persuasion, Berkley Trade. Indigo. ISBN 9780735204515 (revised May 2022)