Leanpub doesn't support every feature you'll find in Google Docs, but we do support all the features you'll need to write 99% of books.
Here is a list of features we support:
- Numbered Lists
- Roman Numeral Lists
- Bullet Lists
- Image Captions
- Inserting Charts
- Inserting Horizontal Lines
- Inserting Tables (though you don't have total control of formatting, e.g. you can't use borders)
- Inserting Some Special Characters
Please note that if you try do a preview or publish a new version of your book using a Google Docs feature we don't support, the book generation process might not work.