In Depth

On the first Sunday of each month, at noon Eastern time, an author of at least three nonfiction books is interviewed. From the first episode through March 2019, the interview lasted three hours. Beginning April 2019, the time was reduced to two hours, The entire body of the author's work is discussed. The author's background, family, and motivation for writing are also explored. The program includes viewer questions and comments by telephone, Facebook, and Twitter. Guests include historians, biographers, politicians, political pundits, scientists, professors, and other fields. In 2018, for the first time, the series featured best-selling authors of fiction, focusing on writers of historical fiction, science and national security thrillers, and social commentary. The series logo had the tag "2018 Fiction Edition".