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    Download your digital resources for Cheng & Tsui titles.

    Key Redemption

    Product Registration Help

    Product Registration Help

    To access purchased content or to download files from the Companion Website, you will need to create an account and register your product.
    Sign in to an existing account or register a new Cheng & Tsui account and enter your product key exactly as it appears.

    (Note: Some products will require you to answer a validation question instead of entering a product key.)

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Payments for individuals

Cheng & Tsui accepts checks or money orders drawn on U.S. banks in U.S. dollars. Please make checks and money orders payable to Cheng & Tsui Company.

For online or phone orders, MasterCard, Visa, and Discover cards are accepted. Please provide the card type, the cardholder's name, the card number, and expiration date.