Slate’s Rebecca Onion and Andrew Kahn analyze the overwhelming maleness of both the subjects and authors of history books, discussing their findings with book publishers:
Our data set revealed some answers about the publishing of popular history that we expected: Authors are largely male, biographical subjects too; “uncle books” make up a third of the total titles published. But the data also raise interesting questions. Is it possible to sell biographies of unfamous people? Why are some historical episodes that fit some of the criteria we outlined above, like the Vietnam War, so absent? And when will World War II ever stop being interesting?