Reuters reported today that Harry Potter UK publishers Bloomsbury will release a new three-book box set later this year as part of their marketing plan to boost higher sales. It is unknown if the three books will brand-new and never released, as J.K. Rowling has yet to announce any future publications on the series, or a repackaging of her previous Harry Potter supplementary titles, including Fantastic Beasts and Where to Find Them, Quidditch Through the Ages, and The Tales of Beedle the Bard.

Bloomsbury, the publisher of the "Harry Potter" series by author JK Rowling, also said it was counting on a new Rowling three-book box set tied into the Potter series, and a non-fiction account of spies in World War II to support sales in the coming year.