 Hart's stand-alone World War II novel "Letter from Home" was nominated for the Pulitzer Prize for Fiction by the Oklahoma Center for Poets and Writers at Oklahoma State University–Tulsa.She has twice appeared as one of the featured mystery authors at the Library of Congress National Book Festival in Washington, D.C.

Hart has won awards throughout her four-decade writing career.Hart's first commercially successful adult mystery series features Annie Laurance, proprietor of the Death on Demand bookstore, located in the fictional South Carolina island community of Broward's Rock.