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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

Elemental: A variety of incorporeal, nonhuman being associated with the natural elements, and therefore considered "nature spirits." Typically, though not exclusively, they are referenced in the pagan folklore and are classified by four types: sylphs, gnomes, undines, and salamanders. Examples include faeries, woodnymphs, sprites, and even leprachauns.

click for team bios

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.