Walter Isaacson’s study of digital innovators and E.O. Wilson’s reflections on human existence are among the books on the longlist for the National Book Award in nonfiction, announced this morning. Given the elastic dimensions of the category (anything nonfiction) and the number of submissions (almost 500), the NBA judges still managed to come up with a group of 10 contenders that includes only one woman: New Yorker cartoonist Roz Chast.