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.
The Many Ghosts of Doctor Graves was created in 1966.
Ghosts of Eden has 279 pages.
Skinner's Ghosts has 405 pages.
Who Let the Ghosts Out is 144 pages. I have the book(:
As far as researches go there are 7 types of ghosts.
There are so many different kinds of ghosts out there. Wondercostumes has a large selection of all different types. A brown ghost or a black ghost are two options.
Ghosts appear in many different forms including:ShadowTransparentSemi-transparentSolidEnergyLightWind
Their are a lot of people that believe in ghosts, and their are a lot of people who don't believe in ghosts. No one really knows how many people believe in ghosts, but mostly thousands believe in ghosts. Some people can sense their presence, and the negative energy they bring.
It is the nature of ghosts that they do not appear in response to human summoning. Many ghosts do not seem to be aware of the presence of living persons at all.
There are many websites which have images of ghosts. One can view these photos on sites such as Oddee. They have many images which are ghostly in appearance. Science of Ghosts also has many images including photos with images within.