This page lets you easily order two to eleven licenses
at volume discount prices.
Select the number of licenses you wish to order from the
If you have them, you can also input the serial numbers of your copies in the text box below, separated by spaces.
If you do not have the serial numbers handy, you will be contacted by email requesting them after your have placed the order.
Then click on the "Buy Now" button. You will be taken to a PayPal page where you can complete your order.
Go to Leithauser Research home page
Go to Date Calculator description page
Go to single license payment page