Used Or Invalid Resources Access Codes

Many casebooks and textbooks from Wolters Kluwer include access codes for additional online resources selected or created by the authors to accompany your book. If you have an access code for additional resources, enter it in the box provided at and follow the registration instructions. If you already have a account, please log in and redeem your code from your bookshelf.

Invalid Codes:

If you are having trouble reading your access code or you get an "Invalid Code" message, please contact us with the following information:

  • Access code you are trying to redeem
  • Book you are using
  • Copy of your receipt demonstrating your new book purchase so that we can provide you with a new code if necessary

Already Used Codes:

If your book includes access to Additional Resources, but you purchased a used book, your access code may have already been used. Access codes and account access are non-transferable. However, you can purchase access to the additional resources you need from

Please note that access codes for Additional Book Resources are not the same as access codes for Connected Casebooks. For more information on this topic, see our article "What Are Additional Book Resources?"

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