The full story of "How the Grinch Stole Christmas" can be found online at the MIT website and for sale through Amazon and Barnes and Noble. Summaries and reviews of the story are also available online on the same websites.
"How the Grinch Stole Christmas" is a Dr. Seuss classic about a grumpy character who hates Christmas. He hates the joy of the holiday as well as the frenetic gift-buying. So, in an act of protest, he decides to "steal" Christmas from the residents of Whoville.
The Grinch dresses up as Santa Claus and transforms his dog, Max, into a reindeer to be in disguise for their visit to Whoville. The Grinch breaks into the Whos' houses and steals all the accoutrements associated with Christmas, including decorations, food and presents. In so doing, he meets a toddler named Cindy Lou Who. She puts the idea in his head that what he's doing is wrong, but he proceeds anyway.
In the climax of the story, the Grinch has taken all the items he stole to the top of Mount Crumpit to throw them into a ravine. It is Christmas morning, so he pauses long enough to listen to the cries of the Whos as they discover Christmas isn't coming. Instead, the Whos band together and sing their joy of the season. The Grinch is so touched he returns to the town and gives back everything, even becoming the center of the festivities.
The Grinch is seen as a moral tale of how to right your wrongs. The sing-song rhyme typical of Dr. Seuss tales makes the story appealing to young children and helps the story's moral remain with them.