Amos Decker is a fictional character created by author David Baldacci. He is a former football player turned detective, known for his exceptional memory, a condition called hyperthymesia, which allows him to remember every detail of his life. Decker uses this ability to solve complex crimes and uncover the truth. The character first appeared in the novel Memory Man, published in 2015. Throughout the series, Decker faces various challenges, including personal loss and the struggles of his family, while navigating the world of crime-solving. His unique skills make him a compelling protagonist in the mystery genre.