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The authorship of both "To Kill a Mockingbird" and "Go Set a Watchman" was investigated with the help of forensic linguistics and stylometry. In a study conducted by three Polish academics, Michał Choiński, Maciej Edera and Jan Rybicki, the authorial fingerprints of Lee, Hohoff and Capote were contrasted to prove that "To Kill a Mockingbird" and "Go Set a Watchman" were both written by the same person. However, their study also suggests that Capote could have helped Lee with the writing of the opening chapters of "To Kill a Mockingbird".