Jack London was an American author and adventurer known for writing adventure novels set in the Klondike Gold Rush such as Call of the Wild. He had a difficult childhood growing up in poverty in San Francisco. As a young man, he lived an adventurous life working as a sailor, gold prospector, war correspondent and experiencing hardship in Alaska. Despite only living until age 40, he wrote many popular novels drawing from his own life experiences and became a renowned and successful author.