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WE'RE BACK!

October 2025 lilbrary presentations return for another season of lively multi-media presentatioins on "ghost hunting" with from a skeptical viewpoint, including high-tech pseudoscience, skeptical inquiry, critical and thinking pitfalls like cognitive biases. Free admission and open to the pubic. Note: Portions of this presentation may not be suitable for very young audiences.

When and where?

Oct. 21, 6-8pm

Kensington Branch Library

4121 Adams Ave, San Diego, CA 92116

Oct. 28, 5:30-7:30pm

Paradise Hills Branch Library

5922 Rancho Hills Dr, San Diego, CA 92139

honoring the heroes of

skeptical inquiry

Floor Plans: Blueprints of a venue are a reminder of where PPI equipment was located during the investigation, where paranormal hotspots were reported by the client, where noteworthy anomalies were recorded, and where sources of high EMF were documented. Collectively this information can assist investigators in the crucial post-investigation stage and provide a visual point of reference when comparative analysis of findings and experiences is undertaken.

click for team bios

Bylaws or By Lawlessness

Bylaws are a basic part of the governance of any organized group. Establishing rules, structure, and guiding principles, bylaws live up to their name: by these laws, a group holds itself accountable and becomes dependably managed. Without bylaws, a group that doesn't articulate its own standards risks flagging membership and organizational instability....

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