Complex sentence: The answer was yes, and after another round of editing, Knopf published "Eragon" in August 2003, with a new cover, drawn by John Jude Palencar.
Split into simpler sentences: The answer was yes, and after another round of editing, Knopf published "Eragon" in August 2003. It also led to a new cover, drawn by John Jude Palencar.