The photograph below owned by Angels & Ghosts was taken in the 1890's. This is called a spirit picture, which shows a ghostly mother appearing behind her baby. Spirit pictures and spirit photography began in the mid-1800s, and became an art form. Some photographers claimed them to be genuine pictures of ghosts; other photographers created these ghost pictures for their clients, only as a neat effect. This is a fine example of spirit photographs created through double-exposure...