Well, 'How the Grinch Stole Christmas' is basically the tale of how the Grinch, who hates Christmas, tries to ruin it for everyone by stealing all the presents and decorations. However, the kindness and spirit of the Whos eventually change his mind and make him see the joy of the season.
The story 'How the Grinch Stole Christmas' is centered around the Grinch's attempt to take away Christmas from the Whos. He steals everything related to Christmas, thinking it will stop them from celebrating. But, he discovers that Christmas is more than just material things and his heart softens.
The story is about a grumpy creature called the Grinch who decides to steal Christmas from the cheerful Whos in Whoville. But in the end, his heart grows and he realizes the true meaning of the holiday.