Our Shopping Cart system computes this at every stage of the order process. We ship split orders at no extra charge when this is necessary to get the order to you on a timely basis. So if part of your order is not available or not yet published, we backorder that part and deliver the books one by one if necessary . Please do not be misled by the ever more unbelievable claims of larger and larger discounts made by our competitors. Calculate every order to the total delivered order price from a number of sellers, and go with the one offering the best combination of price and service.
Big discounts are useless if they apply on only a small percentage of all the books on offer.
You may save on one book and pay more for the other two you need. We have a vast range of books listed and available . Big discounts are no saving if you have to shop several suppliers to meet all your book needs, paying those Order Charges to every one of them - except us, of course. Big discounts are sometimes only available if you pay to join some form of club. This can severely limit your options in the future.