Home

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

Estep, Sarah: Attracted to EVP researcher Konstantīns Raudive in his study of electronic voice phenomena, American Sarah Wilson Estep (1928-2008) not only joined ranks with him in Europe, she extended his research and brought it to the U.S., where in 1982 she launched, both, the American Association of Electronic Voice Phenomenon and her book, Voices of Eternity. Estep is largely responsible for our current system of EVP phenomena into Class C, Class B, and Class A anomalies: Classification A EVP: "A clear and distinct voice or sound that is universally accepted and undisputed, because it must be understood by anyone with normal hearing and without being told or prompted to what is being said or heard. It can be heard without the use of headphones." Classification B EVP: "A voice or sound that is distinct and fairly loud. This class of voice is more common and can be heard by most people after being told what to listen for. It is usually audible to experienced persons who have learned the skill of listening to EVP. It can sometimes be heard without the use of headphones." Classification C EVP: "A faint and whispery voice or sound that can barely be heard and is sometimes indecipherable and unintelligible. It may have paranormal characteristics, such as a mechanical sound. Most investigators would apply objectivity and disregard it, but may save it for reference purposes."

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.

PPI Presents...

Join real-life paranormal investigators from TAPS Family group, Pacific Paranormal Investigations, for a spooky Halloween multi-media presentation with a skeptical view of the science and the pseudoscience of modern paranormal investigating. Enjoy media clips from PPI’s private cases that will leave you laughing, dumbfounded, creeped out, or all of the above. Find out about modern “ghost” hunting technology, the methodology of skeptical inquiry, and the critical thinking tools needed to evaluate ghost “evidence” while at the same time avoiding the pitfalls of pseudo-science and cognitive bias. Learn how to get started as a paranormal investigator with recommended reading and an invitation to join local ghost and paranormal meetup group, SDGAP. It’s fun, always free, and open to the public.

ppi live

'jaded light' award

skeptical inquiry

the daily datum

team ppi welcomes you

sample our readings

PPI Trademark

browse our media library

PPI Presents...

subject index

weather