About the book (from Wikipedia):
The Call of the Wild is a novel by American author Jack London published in 1903. The story is set in the Yukon during the 19th-century Klondike Gold Rush—a period when strong sled dogs were in high demand. The novel’s central character is a dog named Buck, a domesticated dog living at a ranch in California as the story opens. Stolen from his home and sold into the brutal existence of an Alaskan sled dog, he reverts to atavistic traits. Buck is forced to adjust to, and survive, cruel treatments, fight to dominate other dogs in a harsh climate. Eventually he sheds the veneer of civilization, relying on primordial instincts through lessons he learns, to emerge as a leader in the wild.
London lived for most of a year in the Yukon and gained from that experience material for the book. The story was serialized in the Saturday Evening Post in the summer of 1903; a month later it was released in book form. The novel’s great popularity and success made a reputation for London. Much of its appeal derives from the simplicity with which London presents the themes in an almost mythical form. As early as 1908 the story was adapted to film, and it has seen several more cinematic adaptations since that time.
About Jack London (from Wikipedia):
John Griffith “Jack” London (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 exposé The People of the Abyss, and The War of the Classes.