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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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Teacher verification

Some of the items listed on our web site require teacher verification. These are primarily teacher manuals for our textbooks. Because these may contain answer keys or sample tests, in order to protect the integrity of these materials, we do require some form of verification that you are a teacher when you order these items. This can be an email from a school’s official email address, a link to your school’s website listing your name as staff member, or other verifiable material. Unless this verification is received, we cannot fill your order.