What does PJO mean in UNCLASSIFIED

Percy Jackson and the Olympians (PJO) is a series of fantasy adventure novels for young adults written by Rick Riordan. The series follows the adventures of Percy Jackson, a 12-year-old boy who discovers he is a demigod, the son of a Greek god and a mortal human. Percy must navigate the dangerous world of Greek mythology while trying to defeat the forces of the Titans, who are trying to overthrow the gods.

The main character of PJO is Percy Jackson, a 12-year-old boy who discovers he is a demigod, the son of Poseidon, the Greek god of the sea. Percy must navigate the dangerous world of Greek mythology while trying to defeat the forces of the Titans, who are trying to overthrow the gods.

The main themes of PJO include heroism, friendship, and family. Percy Jackson is a hero who must overcome many challenges to save the world. He learns the importance of friendship and family along the way.

PJO is set in the modern world, but it also incorporates elements of Greek mythology. The characters travel to many different locations, including New York City, Los Angeles, and Greece.

PJO is appropriate for readers ages 8-12. However, some of the themes and violence in the books may be too mature for younger readers.