Shelf life is not a concern for one of our most prolific bestselling authors. That would be Nora Roberts, who has three new titles on the bestseller charts—the lead mass market book, Imitation in Death, written by her alter ego, J.D. Robb, and two reprints from her Silhouette oeuvre. So far in 2003, Roberts has landed 10 books on the charts. Laying down on September 15 is the debut hardcover "collaboration" by J.D. and Nora, called Remember When. The story spans two time periods, with Roberts writing about the present and Robb writing about the near future. Putnam plans a 540,000 printing. Robb's Imitation has a 1.2 million—copy first printing. Her In Death series, 17 books so far, has more than 14,400,000 copies in print nationwide. The first, Naked in Death (1995), has more than 700,000 copies in print after 23 trips to press. The Silhouette reissues, too, have substantial numbers—Less of a Stranger, #7 on the mass market list, has 1.2 million copies in print; and Love by Design, #12 on the trade paperback list, has 600,000 copies in print.

—With reporting by Dick Donahue