Bill Clinton's thriller sells a million copies in two months

The unlikely author pairing of President Bill Clinton and James Patterson has proved successful, making Clinton part of a rare club of authors who have sold a million copies of fiction and nonfiction titles.

The big picture: Barnes & Noble buyer Sessalee Hensley released a statement saying the thriller has achieved success from "very strong word of mouth" among readers, but critical reviews have been less forcefully in favor of its literary credentials. The book plot is focused on cyber security threats and dangers.