Publishers Weekly has the story:
As a record-breaking audience of 106 million viewers finished watching the New Orleanss [sic] come-from-behind 31-17 victory over the Indianapolis Colts in Sunday evenings Super Bowl, the Triumph Books team put the final touches on their latest publication, Marching In: The World Champion New Orleans Saints, with the goal of having the book on store shelves by this coming weekend.
Initial press run, according to PW, was 30,000, but they're going back to press on Thursday to print 15,000 more.
The other deets? 128 pages, paperback, full color, lots of purty pictures. Get you some here.