After activating the plugin, go to Bookshelf → settings to configure Bookshelf. Enter your PayPal email address and select the prefered currency. Save changes and start using the plugin.
How to add ebook?
1. Create a new post ( post→ add new )
2. Click on upload PDF file.
3. To add price, use custom field “price” without currency symbol or commas.
4. Publish the post to start selling the ebook(s).
Usage instructions for the latest version of Bookshelf can be found here Using Bookshelf 2.0