Jetpack is a plug-in for self-hosted WordPress blogs. This plug-in allows the blog feed to be accessed from third party sites, such as Blog2Print. The blog feed is used to generate your blog book.
You can download Jetpack by logging on to your dashboard, searching for and installing the Jetpack plug-in.
Once installed, you must be sure to activate and connect Jetpack to Wordpress.com.
This enables you to generate your book from your WordPress site.