This Penguin Horror edition of Frankenstein is set from the Penguin Classics Deluxe Edition (2007), which uses the single-volume third edition of the text containing all of Mary Shelley’s final revisions. Some minor errors in punctuation and composition have been corrected. Interested readers should turn to the Penguin Classics edition (2003) for a chronology, introduction, notes, and appendices from Maurice Hindle, or to the Penguin Classics Enriched eBook Edition (2008) for further editorial work from Charles E. Robinson, including enriched notes and contemporary illustrations.