Jack London's Non-Fiction: six books

This book-collection file includes: John Barleycorn, The Road, The People of the Abyss, War of the Classes, Revolution and Other Essays, and The Cruise of the Snark. According to Wikipedia: "Jack London (12 January, 1876 22 November, 1916] was an American author who wrote The Call of the Wild and other books. A pioneer in the then-burgeoning world of commercial magazine fiction, he was one of the first Americans to make a lucrative career exclusively from writing."