Spectropia

Ghosts are everywhere if you know how to look.
Originally published in 1864, Spectropia is a science-based, time-honored guide to seeing ghosts, ghouls, spirits, skeletons, and witches – no graveyard loitering necessary.

Simply stare at the sixteen color plates inside this book for twenty seconds and you will see colorful spooky specters, life-sized or colossal. Whether a true believer or a skeptic, anyone can experience the paranormal with Spectropia.