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PPI Trademark

PPI is one among tens of thousands of not-for-profit paranormal investigative groups worldwide proud to support and ally with a broader network of dedicated sister groups. However, as a trademarked identity, we are unaffiliated with any other investigative or research entity whose moniker or initials may resemble ours.

 

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PPI Podcast #4: Critical Thinking (2009)

Part 3 of PPI's presentation: Science and Beyond - An Educated Look at Ghost Hunting, is entitled Critical Thinking and Logic. Presented by PPI President and Co-Director Karl Sherlock.

Recorded March 21, 2009 at Grossmont College, El Cajon, California

Length: 00:17:04