Well there are poltergeists which move objects, Specters which are also called apparitions, banshees which make sounds often voices, Demons which of coarse harm people, and there are types of ghosts that use telephones but I'm not sure what their name is. So basically there are 5.
Ghosts appear in many different forms including:ShadowTransparentSemi-transparentSolidEnergyLightWind
Ghosts can take a variety of forms, including appearing black.
it depends on what you mean by other forms. Ghost or spirits are beings invisible to our eyes unless they show them selves through manifestation. There are different types of ghosts, if thats what you mean.Residual spirits are ghosts who can only make them selves known through sound, touch, and smellPresidual spirits are ghosts that are able to make them selvesvisible.
There are many ghosts at the howard school
If you believe in ghosts, than there are many ghosts in the world. There is not an exact answer because some move on just as some die and become ghosts.
A ghost is the soul or spirit of a dead person or animal that can appear in visible form or other forms. Many people have stated that ghosts do exist.
The Many Ghosts of Doctor Graves was created in 1966.
Ghosts of Eden has 279 pages.
Skinner's Ghosts has 405 pages.
The most powerful demon is the one who can cause suffering to both humans and ghosts. He/she takes many forms and names through out different religions and culture.
Who Let the Ghosts Out is 144 pages. I have the book(:
As far as researches go there are 7 types of ghosts.