"World War I introduced a new type of warfare: mechanized war on a global scale. Nathan Hale (the author's real name), whose previous graphic histories for young readers include "One Dead Spy" (about the American hero Nathan Hale), "Big Bad Ironclad" (about the American Civil War), and "Donner Dinner Party" (about the Donner Party of 1846-47), here offers a concise illustrated history of WWI"--