Podcast:Speaking of Psychology Published On: Mon Apr 23 2018 Description: Persuasion expert Robert Cialdini, PhD, talks about his formidable body of work developing and understanding what he calls the six universal principles of influence. APA is currently seeking proposals for APA 2020, click here to learn more https://convention.apa.org/proposals Learn more about your ad choices. Visit megaphone.fm/adchoices