Rick Riordan is an American children’s and middle-grade author best known for the Percy Jackson and the Olympians series, beginning with The Lightning Thief. A former teacher, Riordan turned Greek mythology into fast, funny, modern adventure through Percy Jackson,... a boy with ADHD and dyslexia who discovers he is the son of Poseidon. That series became the foundation for a larger mythological universe, later expanding through The Heroes of Olympus, The Kane Chronicles, Magnus Chase and the Gods of Asgard, and The Trials of Apollo. Riordan’s books are known for sharp first-person humor, accessible mythology, loyal friendships, diverse young heroes, and quests that mix ancient gods with modern problems. Readers return to him for adventure, wit, emotional clarity, and characters who feel powerful because of their differences, not despite them.