All of these numbers become very important when a text is sold. When someone buys a book, it's important to have a record of the sale so that the Exchange can pay the seller. This is where the paperwork comes in handy. First, take out the book slip and find the matching contract. Next, stamp SOLD on the contract and on the book slip.
Students can pay by either cash or check.
If you have the appropriate equipment for credit cards, this is very convenient as well. This completes the buying process. Don't allow students to pick up their money until the second week of the Book Exchange, preferably the last three days. This cuts down on confusion. When a student comes to pick up money, look at his contract to find the matching number.