Lynne Olson, Elizabeth Berg, and Elizabeth Letts all join Writers Series co-founder Doug Stanton on the stage of the City Opera House to talk about their work. Author and journalist Lynne Olson is known for her books about history, especially World War II. Her latest is “Madame Fourcade’s Secret War.” Elizabeth Berg writes novels, such as “Open House” and “The Story of Arthur Truluv.” And Elizabeth Letts writes books of non-fiction and historical fiction. Her latest is about “Wizard of Oz” author Frank L. Baum’s wife, Maud Baum. Doug asked each author to describe their latest book. Lynne Olson went first.