I am not a professional grader. I grade the books as I would grade them for my private collection then go one-step harder so I am very comfortable with the books that go out the door. I do combine shipping on qualifying items. If multiple items won please send a request for total and wait for invoice with adjusted shipping costs before paying. Shipping costs cannot be adjusted if payment is made before doing this and individual shipping costs will be charged to buyer. Payment is expected within seven days of sale's end or will automatically open an unpaid item case so only serious buyers please. I will not end any sales early but if for some reason I will end it I will offer the "BUY IT NOW" option otherwise the sale will be allowed to run it's course. Be sure to add me to your favorites list!