Book Report on Jack London's "Call of the Wild" Can one person fit into three very different categories? In Call of the Wild, by Jack London, London proves he is an emphatic naturalist. However, his knowledge of the areas in which the book is set and of the harsh realities of life show that he also appears to be a regionalist and naturalist. London's love for nature is obvious in this novel. The settings are miraculously vivid with descriptions that could not have just been made in his head. He describes many different areas over a course of twenty-five hundred miles. However, not only