"Percy Jackson & The Olympians: The Lightning Thief" is a popular fantasy-adventure novel written by Rick Riordan. It is the first book in the "Percy Jackson & The Olympians" series, which follows the adventures of Percy Jackson, a demigod and the son of Poseidon, as he discovers his true identity and embarks on a quest to retrieve Zeus' stolen lightning bolt.
The book was published in 2005 and has since become a beloved series with a significant fanbase. It has also been adapted into a movie and a musical.