No wonder this is such a classic and so many times adapted to the visual arts.
Dickens writting is excelent, specially for the time. He doesn't sound so heavy or flourished as other writers, but still manages to keep us engaged in elegant style and with enough world building.
We follow the cold-hearted, cheap, and unkind Scrooge. Not empathic, not understanding, always grumpy. And one Christnas eve night he is visited by a Ghost and Three Spirits from Past, Present and Future whi show him what was, what is, and things that were yet to come. And these visits he is able to do, or visions he is able to see, teach him a lesson and soften his heart.
During the story it is plain to see about the poor people's difficulties, and how cruel life can be for those who have very little to none. At the same time, people, as poir as they are, still find some joy in simple things as comforting food, good company, old songs, and play.
Things for us to keep in mind all year long.