Following attention for pre-publication excerpts from Steven Rattner’s OVERHAUL, Houghton Mifflin Harcourt is moving up publication to September 20 from the original release date of October 14. Harper One has released Deepak Chopra’s new book MUHAMMAD: A Story of the Last Prophet as en ebook in advance of the print edition, and is “working to accelerate the on-sale date for the physical book.” They say it’s the first time the company has released an ebook in advance of a physical book.