Richard Riordan Jr. was born June 5, 1964.He is an American author. He is known for writing the Percy Jackson & the Olympians series, about a twelve-year-old boy who discovers he is a son of Poseidon. His books have been translated into 42 languages and sold more than 30 million copies in the US. 20th Century Foxhas adapted the first two books of his Percy Jackson series as part of a series of films. His books have spawned related media, such as graphic novels and short story collections. Riordan's first full-length novel was Big Red Tequila, which became the first book in the Tres Navarre series. His big breakthrough was The Lightning Thief (2005), the first novel in the five-volume Percy Jackson series, which placed a group of adolescents in a Greco-Roman mythological setting. Since then, Riordan has written The Kane Chronicles trilogy and The Heroes of Olympus series. The Kane Chronicles (2010-2012) focused on Egyptian mythology; The Heroes of Olympus was the sequel to the Percy Jackson series. Riordan also helped Scholastic Press develop The 39 Clues series and its spinoffs, and penned its first book, The Maze of Bones (2008). His most recent publications are three books in the Magnus Chase and the Gods of Asgard series, based on Norse mythology. The first book of his The Trials of Apollo series based on Greek mythology, The Hidden Oracle, was released in May 2016. He conceived the idea for the Percy Jackson series as bedtime stories about ancient Greek heroes for his son Haley. Haley had been diagnosed with ADHD and dyslexia, inspiring Riordan to make the titular protagonist ADHD and dyslexic. Riordan published the first novel in the series, The Lightning Thief , in 2005. Four sequels followed, with the last, The Last Olympian in 2009. Prior to Percy Jackson, Riordan had written the Tres Navarres series, a series of mystery novels for adult readers. His Percy Jackson and the Olympians series features the titular twelve-year-old who discovers he is the modern-day son of the ancient Greek god Poseidon. Twentieth Century Fox purchased the film rights and released a feature film in 2010. Following the success of Percy Jackson, Riordan created The Kane Chronicles, which features a modern-day Egyptian pantheon and two new sibling protagonists, Sadie and Carter Kane. Riordan also created a sequel series to Percy Jackson, The Heroes of Olympus. Riordan also helped create the children's book series The 39 Clues; he authored several of its books, including The Maze of Bones, which topped The New York Times Best Seller list on September 28, 2008. He also wrote the introduction to the Puffin Classics edition of Roger Lancelyn Green's Tales of the Greek Heroes, in which he states that the book influenced him to write his Greek mythology series.

For more information press link below :

https://en.wikipedia.org/wiki/Rick_Riordan