Tinker Marks is the pen name of Mark Montgomery and Irene
Powell, two retired economics professors from Grinnell College.
They live in Central Iowa with one good dog and one bad dog.

Together, they bring a unique blend of intellectual rigor and narrative charm, using their deep understanding of human behavior (and academic politics) to craft mysteries that are as thoughtful as they are entertaining. With one foot in the lecture hall and the other in literary intrigue, Tinker Marks delivers fiction that’s smart, funny, and impossible to put down.