1. Main Character:
- The exposition introduces Stanley Yelnats, an unlucky teenager often blamed for events he didn't cause.
- He is mistakenly convicted of stealing a pair of sneakers and sentenced to Camp Green Lake, a juvenile detention center.
2. Camp Green Lake:
- The story establishes the setting of Camp Green Lake, a desert camp located in the hot and dry region of Texas.
- The camp is presented as a harsh environment with strict rules and regulations for its detainees.
3. The Warden and Camp Counselor:
- Readers are introduced to Warden Walker, the authoritarian and formidable leader of Camp Green Lake, and Mr. Pendanski, the stern camp counselor who oversees the boys.
4. The Holes:
- The exposition highlights a significant aspect of the camp: the boys are forced to dig holes every day, supposedly to build character and promote self-discipline.
5. The Curse of the Yelnats Family:
- Stanley's great-grandfather, Elya Yelnats, is introduced, and the history of a curse that has plagued the Yelnats family for generations is revealed.
6. Kissin' Kate Barlow and Sam:
- The story presents Kissin' Kate Barlow, an outlaw, and her partner Sam, who played significant roles in the history of the area and are rumored to have hidden a fortune.
7. Zero:
- Stanley meets a fellow camper called Zero, who later becomes his friend and ally in the story.
The exposition in Holes sets up the main conflicts, introduces important characters, and lays the groundwork for the central themes and events that unfold throughout the novel. It provides readers with the necessary information to understand Stanley's journey, delve into the mystery of Camp Green Lake, and explore the curse that seems to follow the Yelnats family.