3 and they are christmas past, present, future
The first of the three Christmas spirits who visits Scrooge is the Ghost of Christmas Past. This spirit takes Scrooge on a journey through his past to help him reflect on his life choices and actions.
Yes, after the visits from the spirits Scrooge really did change.
All the spirits teach scrooge a lesson
Scrooge is never explicitly dumped in Charles Dickens' "A Christmas Carol." Scrooge experiences the consequences of his actions throughout the story, particularly through the visits of the three spirits on Christmas Eve.
Marley tells Scrooge to expect three more spirits to visit him that night.
To show scrooge issues he encountered in his past
Three were foretold
The first spirit-like visitor seen by Ebenezer Scrooge in "A Christmas Carol" is the ghost of his former business partner, Jacob Marley. Marley's ghost appears to warn Scrooge about his current path and to set the stage for the visits by the three Christmas spirits.
The Ghost of Christmas Present
Marley told of three ghosts
He does not visit anywhere in his beadroom In the original story he is always taken from the room
Jacob Marley visits Scrooge to deliver the warning that if he does not mend his greedy ways that he will spend the afterlife wrapped in heavy chains, which represent his love of money in this life. He also informs him that he will be visited by three spirits that night: the ghosts of Christmas Past, Christmas Present, and Christmas Future.