After four years of delay, next Tuesday will see the release of the book “The Lost Symbol,” writer Dan Brown’s much anticipated follow-up to the “Da Vinci Code.” The novel will continue the main story of character Robert Langdon and once again he’ll be solving a mystery steeped in art and history this time [SPOILER ALERT!] in Washington, D.C. We speak to Motoko Rich, who covers publishing for our partner the New York Times, about how the release of this book is being seen as a make-or-break moment for the publishing industry during an economic recession.