This document provides biographical information about author Rick Riordan, known for writing fantasy and adventure books such as the Percy Jackson series. It notes that Riordan was born in 1964 in San Antonio, Texas, works as both an author and teacher, and has written several successful book series targeted towards young adults such as Percy Jackson, The Heroes of Olympus, and The 39 Clues. Sources of information about Riordan and his works are also listed.