An editor is available online to edit your books. A new build will be started each time you save a file. Refer to the section "Draft Workflow" if you want to write a draft of the book without building it.
How to access the editor?
The editor is accessible on each of your books. From the book's dashboard, click on the "edit" icon, it will open a new tab with the editor.
The editor is compatible with all modern web browsers: Google Chrome, Safari, Firefox and Internet Explore; check that you're using the latest version of your web browser.