Amos Walker is a fictional private detective in a series of more than thirty novels and short stories written over the course of five decades by Loren D.
[1] Publishers Weekly has called author Estleman "arguably the finest [living] practitioner of hard-boiled private eye fiction with his Amos Walker novels,"[2] and the series has won multiple Shamus Awards from the Private-Eye Writers of America (PWA), including a Lifetime Achievement Award for the author.
On his first appearance, in Motor City Blue (set around 1980), Amos is in his thirties, and he ages over the course of subsequent novels.
As one reviewer noted: Like Estleman, who pecks out his books on a 1967 Olympia manual typewriter, Walker is wa-a-ay low-tech.
)[4] The Thrilling Detective website stated: Walker is definitely a throwback to another time, an unapologetically old-fashioned, defiantly politically-incorrect gumshoe — but it could certainly be argued that that’s part of his charm.