* Naturalism: London's works often depicted the harsh realities of life, particularly for those living on the margins of society. He focused on themes of survival, struggle, and the raw forces of nature. This is exemplified in books like "The Call of the Wild" and "White Fang."
* Adventure: He wrote many stories set in exotic locations with thrilling plots, often involving exploration, danger, and the pursuit of adventure. "The Sea-Wolf" and "The Iron Heel" are examples of this.
* Social Realism: London's works frequently tackled social issues such as poverty, class struggle, and the exploitation of labor. "The People of the Abyss" and "The Iron Heel" showcase his social commentary.
While these are his most prominent genres, he also wrote in other areas, including:
* Romance: "Love of Life" and "The Scarlet Plague"
* Science Fiction: "The Iron Heel"
* Short Stories: He was prolific in this area, with collections like "The Son of the Wolf" and "South Sea Tales" showcasing his diverse range.
Therefore, Jack London's writing encompasses a variety of genres, with Naturalism, Adventure, and Social Realism being the most prominent.