Blogs

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

Apparition: The scarcest of paranormal phenomena, the apparition is a full or partial materialization of "spirit energy" (though, there is nothing officially recognized or objectively measured as "spirit energy".) An apparition may be anything that suddenly appears (i.e., becomes apparent). As such, it ranges in form from an orb to a "full-body apparition," the latter of which is synonymous with the popular conception of a ghost. Apparitions can also vary in opacity, from solid to transparent. Some apparitions are not merely forms, either; apparitions that manifest along with a "ghost room" are also said to occur rarely.

click for team bios

A Tribute To Glenn Pitcher

This permanent memorial page on our website honors our greatly loved friend and PPI Founder, Glenn Pitcher, who passed away unexpectedly on March 2, 2009.

PPI Podcast #2: Investigative Techniques (2009)

Part 1 of PPI's presentation: Science and Beyond- An Educated Look at Ghost Hunting, is entitled Investigative Techniques. Presented by PPI Investigator and Case Manager Jason Sieckman.

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

Length: 00:17:12