Subscriptions are  orders represent the one guaranteed source of calculable revenue for publishers. Flexible product design for different titles, variable pricing and order concepts, and self service functions in the Internet intensify customer-orientation in subscription sales. A wide range of information is stored in the order, so that media customers can be sure that all aspects of their subscriptions will run smoothly - from punctual delivery through precise and correct invoicing. Orders can be placed in writing, by phone, or using the Internet. Simple and speedy processing is the publisher?s watchword.