By J.R.R. Tolkien
Summary by Wikipedia:
Set in a time "Between the Dawn of Færie and the Dominion of Men", The Hobbit follows the quest of home-loving hobbit Bilbo Baggins to win a share of the treasure guarded by the dragon, Smaug. Bilbo's journey takes him from light-hearted, rural surroundings into more sinister territory. The story is told in the form of an episodic quest, and most chapters introduce a specific creature, or type of creature, of Tolkien's Wilderland. By accepting the disreputable, romantic, fey and adventurous side of his nature and applying his wits and common sense, Bilbo gains a new level of maturity, competence and wisdom. The story reaches its climax in the Battle of Five Armies, where many of the characters and creatures from earlier chapters re-emerge to engage in conflict.
Personal growth and forms of heroism are central themes of the story. Along with motifs of warfare, these themes have led critics to view Tolkien's own experiences during World War I as instrumental in shaping the story. The author's scholarly knowledge of Germanic philology and interest in fairy tales are often noted as influences.