Anybody have any idea where I might be able to get some kind of American History textbook? One of my students is partularly interested in learning some American History. So far, I’ve been to Caves, Eslite, and Page One. I’ve only found books that are really simple English (beginner) or books that cover American history but are extremely specific about the topic they cover (maybe one talks about the cotton gin and that’s it). I am looking for something with lots of general information. Any help would be greatly appreciated. 
At the used book stalls in the basement of the building next to the Guanghwa computer street.