Kathleen Brady's latest book is Francis and Clare The Struggles of the Saints of Assisi. She is the author of Ida Tarbell: Portrait of a Muckraker (now a University of Pittsburgh Press paperback). In recognition of this work she was named a Fellow of the Society of American Historians.

She also wrote the critically well-received Lucille, The Life of Lucille Ball and co-authored Your Pain is Real with the neurologist Emile Hiesiger.
She contributed an essay on the mayor’s emergency command center to the anthology America’s Mayor The Hidden History of Rudy Giuliani’s New York

Brady was featured on the American Masters PBS special about Lucille Ball and narrated the first installment of the PBS series "The Prize." She also appears on the A&E Biography of the Rockefeller family and has discussed her work on NPR.

The 1994 ABC-TV movie, "A Passion for Justice," starring Jane Seymour, was based on Brady's research into the life of Mississippi journalist and civil rights activist Hazel Brannon Smith.

Brady has contributed opinion pieces about New York City to Newsday and Our Town. Her topics included New York City's flawed bid for the 2012 Olympics, corporate and state hostility toward Gotham's work force, plus shenanigans that compromise the city's electoral clout.

Brady was the Director of Communications for NYC Employment & Training Coalition, a nonprofit organization that advocates for job training and advancement for entry level and mid-skill workers. She is a past co-director of the Biography Seminar at New York University and a former reporter for Time Magazine.