When you write a Leanpub book, you can create "Previews" of your book, to see what it looks like in the multiple formats we provide.
We also encourage authors to "Publish Early, Publish Often". Publishing your book puts it up for sale on our bookstore, where you will earn 80% in royalties on every sale. Whenever you publish a new version of your book, that new version is instantly available to all of your current readers, and is the one that will be bought by any new readers. Please not your readers get all your updates for free!
On a Free plan, you can preview and publish, collectively, up to twenty times per month. On a Standard or a Pro plan, you have unlimited previewing and publishing.
For more information on our author plans, please see this article: