The Call of the Wild is Jack London’s first bestseller and is one of the most popular novels during the early twentiethcentury in America. It is considered as a model of American literature. This novel depicts how Buck turns from a dog to a leading wolf that returns to the nature. Buck reflects not only the figure of the author but also his aspirations and pursuits. When comparing Buck with the author, it can be said that to a large extent Buck is the author himself-the combination of reality and ideal.