If you are seeing strange characters in your book, you may be able to fix the problem by changing the character encoding to be UTF-8.
Here are the steps to do this:
- Go to your Book Tools menu for your book
- Click on "Writing"
- Click on "Generation Settings"
- Tick the box next to "FORCE CHARACTER ENCODING TO BE UTF-8"
- Click the blue "Update Book" button
The next time you create a Preview, the strange characters should be gone. If they are not, please contact Leanpub support at firstname.lastname@example.org.