Every now and then I will pick up a book at Costco... I'm just starting this one I picked up about a week ago called The Silk Roads... A New History Of The World by Peter Frankopan and how the Silk Roads help spread civilization, through trade and conquest, leading to the spread of ideas, cultures and religions, all around the world... I feel if you are into history it is well worth the read and at only twenty buck you can't beat the price... I don't know if it is on line, you can check... If you have a Costco in your area or another bookstore that may carry it, check it out... You might want to add it to your library... Brother Glen