We will only fulfill and INVOICE ORDERS and REQUESTS FOR INSTRUCTOR MATERIALS fromBOOKSTORES and INSTRUCTORS. INSTRUCTORS, if you are using this book in your class and are NOT going through your bookstore, we need to know HOW MANY STUDENTS are in your section TWO WEEKS IN ADVANCE so we can manage orders. If you are a STUDENT, we will need to receive PAYMENT PRIOR TO SHIPPING.