Cecil Mary Leslie was a British engraver, painter, sculptor and furniture designer. She studied at the Royal Academy Schools in London and began exhibiting her work in 1923. She participated in exhibitions at the Royal Academy, the Society of Women Artists, and the Glasgow Institute of Fine Arts, and her work was shown internationally. She illustrated many books including Puffin editions of Heidi and The Story of the Treasure Seekers by E. Nesbit. Across her work she is known as a key contributor to the Art Deco movement of the 1920s and 1930s.