Christmas was never complete without books. I fondly remember the excitement I had as a child (and maybe not quite so young) opening the wrapped books and the anticipation of diving into the new world.
In my life there were many, many books, covering non-fiction, such as history or nature, to great novels. Often they were seasonal Christmas books, things I read at the special time of year. Every childhood character had a Christmas version of their adventure, and I am very tempted to include Spot's First Christmas by Eric Hill, as it sticks in my mind because we bought it for my daughter on her first Christmas. There are other books I associate with Christmas, such as Harry Potter and the Philosopher's Stone by J.K. Rowling, because of the Christmas scene at the school, and The Lion, the Witch and the Wardrobe by C. S. Lewis, because it is always winter and Father Christmas does make an appearance.
It is interesting to note that despite the Christmas stories being happy overall, there are some dark elements to pretty much all of them. Perhaps Christmas is about redemption as much as being the season of goodwill.