Information regarding canceling subscriptions generally is included in the initial contract or the terms and conditions that apply to the subscription. In some cases, instructions are available on the website of the subscription provider.
Email subscriptions must include information about how to unsubscribe in all messages in order to comply with federal anti-spam laws. An unsubscribe link or contact address usually is supplied at the bottom of the email. Magazine subscriptions purchased from a subscription agency such as Publisher's Clearinghouse typically must be cancelled through the agency; the company's website is the best place to find contact information or an unsubscribe address. If the subscription was purchased directly from the publisher, contact information is usually located on the Table of Contents page of the magazine or on the magazine's website.