Becoming Michelle Obama hard back book

this is a Hardback book used condition. has the outside jacket cover. this is showing some wear and tear around the edges and corners. nothing is torn just showing signs of being stored or carried. the inside binding is tight though. I found no issues with the pages inside. I did notice on the bottom of the book itself in something black. on closer inspection it looks like something rubbed a little of the outer layer of the book material off to the underneath. there is a section about an inch on the back right on the edge and corner. then on the binding section. both are not seen when the jacket cover is on. and doesn't take away from the book at all. found no other issues or flaws. smoke free home and pet friendly home.