• Educators
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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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Contact the Customer Service Department

Address Cheng & Tsui Customer Service Department
  25 West Street
  Boston, MA 02111
Phone 1-617-988-2400
Fax 1-617-426-3669
Online Contact Customer Service