Lucy Peacock was the author, often anonymously, of numerous popular works for children. She appears to have translated, edited, published, and sold many of them herself as well. Her most famous books included Adventures of The Six Princesses of Babylon in Their Travels to the Temple of Virtue (1785), The Knight of the Rose: an Allegorical Narrative (1793) The Little Emigrant (1799), The Visit for a Week (1794), and Patty Primrose (1813). Peacock's Juvenile Library operated at 259 Oxford Street in London from at least 1796 to 1807. Lucy Peacock also served as the editor of The Juvenile Magazine, a periodical that published stories by Dorothy Kilner and Mary Ann Kilner, among others.