The Mystery of History Volume IV (retailing at $99.95) covers world history from Johann Sebastian Bach (1708) to the global war on terror (2001–2014). Where most modern history books focus heavily on the World Wars, The Mystery of History Volume IV weaves American history into the pages of world history for proper context—on one thought-provoking timeline. (Access to a digital Companion Guide, a 500+ page PDF resource—full of curriculum for all ages—is found on the inside cover of the book!) The ISBN of our current First Edition* is: 978-1892427304 . The Mystery of History product: https://themysteryofhistory.com/product/volume-4-student-reader-and-companion-guide/