- How to Update Account Information
- How to Sign in with a CK-12 Username Instead of an Email Address
- How Is CK-12 Different from Other K-12 Resources?
- Does CK-12 Provide K-5 Materials?
- Content in Languages Other Than English
- What Does The "C" in CK-12 Stand For?
- Will Materials from Major Publishers Be Available on CK-12?
- Why Focus on K-12 Instead of Higher Education?
- Can I Charge for My FlexBook® Textbook to Recover the Cost of Printing?
- How to Contact CK-12 Support
- How Is CK-12 Funded?
- How to Delete Your CK-12 Account
- Who Writes the CK-12 FlexBook® Textbooks?
- What Is a Concept Map?
- Troubleshooting Checklist
- My page is slow to load or stuck on loading
- Is My Browser Supported?
- I Can't Sign in to CK-12 with My Login Credentials
- I Can't Access the CK-12 Site
- Trouble with Saving or Displaying Content
- Videos Are Not Playing on My Windows Device
- Equations Do Not Display Well on My Ebook Reader (e.g. Kindle, Nook)
- Error Message: "Cannot save because an artifact of this name already exists."
- Error Message: "You are reading an older version...Please edit the flexbook to update this concept."