Letters on Demonology and Witchcraft Addressed to J. G. Lockhart, Esq. (1830) was a study of witchcraft and the supernatural by Sir Walter Scott. A lifelong student of folklore, Scott was able to draw on a wide-ranging collection of primary and secondary sources. His book found many readers throughout the 19th century, and exercised a significant influence in promoting the Victorian vogue for Gothic and ghostly fiction. Though on first publication it met with mixed reviews, it is now recognised as a pioneering work of scientific anthropology, treating of its subject in an acute and analytical way which prefigures later scholarship on the subject, as well as presenting a highly readable collection of supernatural anecdotes. Source: Wikipedia (en)