Iris Collier is the daughter of a professional musician and was educated at Newnham College, Cambridge, where she read history. She taught creative writing in Chichester for a number of years and now lives in Boxgrove, England, where she researches and writes history books and thrillers. She is very interested in the rich history of England, and in particular, the history of the local priory at Boxgrove, where she gives guided tours. Boxgrove Priory and its environs provided much of the background and inspiration for Day of Wrath, her first historical crime novel.
Iris is married to a former diplomat, and has traveled a great deal throughout her married life. She has two grown children and one grandson.