"Born Free" is a book written by Joy Adamson in 1960, which tells the true story of a lioness named Elsa. The narrative follows Adamson and her husband, George Adamson, as they raise Elsa from a cub and later attempt to reintroduce her to the wild in East Africa. The book highlights themes of wildlife conservation and the bond between humans and animals. It was later adapted into a successful film in 1966, further popularizing the story and raising awareness about the importance of protecting wildlife and their natural habitats.