ISSUE

POSSIBLE RESOLUTION(S)

 Lines too thin/narrow...

 Try zooming up image...

Note: For available zoom options, refer to device's instructions or try online for assistance. You might also try various gestures [e.g. pinch-to-zoom (spread two fingers apart), spread-pinch, double-tap, etc.]. Note that gestures may vary by device/operating system and may be subject to change.

Also Try: Tracing Examples

Lines hard to see/too light...

Try adjusting brightness/contrast, and/or try zooming up image...

Note: For available zoom options, refer to device's instructions or try online for assistance. You might also try various gestures [e.g. pinch-to-zoom (spread two fingers apart), spread-pinch, double-tap, etc.]. Note that gestures may vary by device/operating system and may be subject to change.

Also Try: Tracing Examples

Final result looks messy...

Consider omitting horizontal/vertical lines...

 Also consider erasing/undoing & then redoing applicable lines that are not neat

Also Try: Tracing Examples

Lines block puzzle...

Consider highlighting...

Or consider a narrower pen, and/or use outline instead of strikethrough

Problem With Link?

Try here

Problem With Answer Key?

Try here and here (.pdf version) or here (images)

3/2026 Update: The answer key issue has been resolved (at least for new purchases). Please try here for more information.

Looking For Table Of Contents / Tracing Examples?

Try here

Other Issue?

Please Let Us Know

Issue With Device/Pen?

Please Note: Although we cannot troubleshoot issues with devices/pens, perhaps the following general questions may prove useful...⁺

* Have you tried turning the device off & back on?

* Is there sufficient storage space remaining on the device?

* Is the battery sufficiently charged?

* Is the operating system up to date?

* Have you checked the device's settings?

* Has the book downloaded properly?

* Is the pen tip in good shape?

* Have you checked your internet connection (as applicable)?

* Did you follow appropriate instructions in error messages (if any)?

* Might it be helpful to try again at a later time or on another device (if available)?

* Have you consulted the device manufacturer/seller or tried online for assistance?

⁺ Note: Be sure to first have a good backup in order to prevent data loss