John Watson is not as widely recognized a name in literature as some other authors, primarily because "John Watson" could refer to different individuals, and there is no definitive literary figure with that name known for a specific body of work. However, the name is most popularly associated with a character rather than an author: Dr. John H. Watson is the famous fictional friend and biographer of detective Sherlock Holmes in the stories written by Sir Arthur Conan Doyle. If you are asking about an author named John Watson, it would be helpful to have more context or full name to give an accurate description. For instance, there is John Broadus Watson, an American psychologist who established the psychological school of behaviorism, and he has written on that subject. If referring to another John Watson, please provide additional details so that I can offer a more precise description.