Title: "Combinatorial Matrix Theory (Encyclopedia of Mathematics and its Applications, S Description: CONDITION: Pre-owned with normal signs of wear and tear. The cover, spine, and back show visible scuffs, some pages may have creases and there may be some staining on the front and back cover. Please refer to the images to better understand the item's condition. Details: Returns: We offer a 100% money-back guarantee. If the item does not meet your expectations, you can return it for a full refund. Shipping: The item will be dispatched within one business day upon receiving payment. Thank you for considering this item. Should you have any inquiries, concerns, regarding the product or service, please don't hesitate to get in touch. Your satisfaction is our priority, and we are committed to ensuring your complete contentment. Thank you for your purchase. "Optimize your shipping costs by acquiring multiple items! We are delighted to combine shipping for multiple purchases." Please feel free to reach out if you have any further questions. When shipping a book, it typically goes through media mail unless there's a request for expedited shipping.