James Preller is an American author known for his children's books, particularly the popular Jigsaw Jones mystery series. He has written over 50 books, engaging young readers with relatable characters and exciting plots. Preller's work often emphasizes themes of friendship, adventure, and problem-solving. In addition to the Jigsaw Jones series, Preller has authored other notable titles, including The Courage Test and Bystander. His writing is characterized by its accessibility and appeal to early readers, making him a favorite among educators and parents. Preller's contributions to children's literature have earned him recognition and a dedicated readership.