London spent almost a year in the Yukon collecting material for the book. The story was serialized in the Saturday Evening Post in the summer of 1903 and was published a month later in book form. The book’s great popularity and success made a reputation for London. As early as 1923, the story was adapted to film, and it has since seen several more cinematic adaptations.

John Griffith "Jack" London (born John Griffith Chaney, January 12, 1876 - November 22, 1916) was an American author, journalist, and social activist. He was a pioneer in the then-burgeoning world of commercial magazine fiction and was one of the first fiction writers to obtain worldwide celebrity and a large fortune from his fiction alone. He is best remembered as the author of The Call of the Wild and White Fang, both set in the Klondike Gold Rush, as well as the short stories "To Build a Fire ", "An Odyssey of the North", and "Love of Life". He also wrote of the South Pacific in such stories as "The Pearls of Parlay" and "The Heathen", and of the San Francisco Bay area in The Sea Wolf .

London was a passionate advocate of unionization, socialism, and the rights of workers and wrote several powerful works dealing with these topics such as his dystopian novel The Iron Heel , his non-fiction expos� The People of the Abyss , and The War of the Classes.

Source: Wikipedia