Stanley Yelnats is the main character in the novel "Holes" by Louis Sachar. He is a teenage boy who is wrongfully sent to a juvenile detention camp called Camp Green Lake. Stanley comes from a family with a history of bad luck, which he believes is due to a family curse. At Camp Green Lake, Stanley is forced to dig holes every day as part of a mysterious program. Throughout his time at the camp, he learns about friendship, perseverance, and the importance of his family history. His journey ultimately leads him to uncover the truth behind the camp and his family's past.