Stieg Larsson did not live to see the enormous success of his Millennium trilogy, which has now sold over 46 million copies world-wide. But a new book, "On Stieg Larsson," offers a window into the creative process behind the series of thrillers, which revolve around the antisocial computer hacker Lisbeth Salander and the investigative journalist Mikael Blomkvist.

"On Stieg Larsson," which is part of the Millennium Trilogy Deluxe Boxed Set to be released on Nov. 26, includes four essays about the author, as well as an exchange...