When a book is published, you can share the link to let others read it online, on any device.
First, you need to publish your book online. Then, use the link to view it online (these links begin read.bookcreator.com).
The experience is much the same as when you switch to Read mode in Book Creator. However, there are some differences:
You can't edit the book
You can't download the book as an ebook
You can still toggle between single/double pages and click the full screen icon to make the book go full screen.