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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

File Naming Protocols: In an investigative case, a system of naming files in a manner that taxonomically catalogues important features while concealing private information such as client identity and location; used as much for their legal protection as for their practical applications, these protocols can differ from one group to the next but are the crucial to a peer review process as well as a data and media paranormal archive.

click for team bios

Class B EVP

Class B EVPs suffer from an identity crisis, fraught with credibility issues and doubt. As such, they're easy to misclassify. In fact, the uncertainty about so many Class B EVPs has raised many a debate as to whether or not another system for classification should be used....

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