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"Catching Fire" had a preliminary hardcover release date of September 8, 2009, which was moved up to September 1 in response to requests by retailers to move the release to before Labor Day and the start of school for many readers. It was also published as an audiobook on the same day. Advance reading copies were available at BookExpo America in New York City, and were sent out to some booksellers, and offered as prizes in Scholastic's "How Would You Survive" writing contest in May 2009. An eBook version was also published on June 3, 2010. "Catching Fire" had an initial print of 350,000 copies, a number which had grown to over 750,000 by February 2010. The release of "Mockingjay", the third novel of the series, followed on August 24, 2010. , the book has sold over 10 million copies.