Литература
Тексты:
The Castle of Otranto, a Story, translated by William Marshal Gent, from the Original Italian of Onuphrio Muralto, Canon of the Church of St. Nicholas at Otranto. London, 1764.
The Castle of Otranto, a Gothic Story, by Horace Walpole. London, 1765.
The Mysterious Mother. A tragedy. By Mr. Horace Walpole. Printed at Strawberry-Hill, 1768.
The Works of Horatio Walpole, Earl of Orford, 5 vol. 1796.
Horace Walpole's Correspondance. The Yale edition, vol. 1-15, 1932-1951.
Horace Walpole. The Castle of Otranto. With Sir Walter Scott's introduction of 1821 and a new introduction by Martin Mudrick. Collier Books, New York, N. Y., [1962].
Научная литература:
Horace Walpole. A Memoir. By Austin Dobson. London, 1893.
Dorothy Stuart. Horace Walpole. London, 1927 («English Men of Letters»). Stephen Gwynn. The Life of Horace Walpole. London, 1932. Hans Mobius. The Gothic Romance. Leipzig, 1902.
Alice M. Killen. Le Roman Terrifiant ou «Roman Noir», de Walpole a Anne Radcliffe et son influence sur la litterature francaise jusqu'en 1840. Paris, 1923.