All you have to do is visit Smart Pop's site and sign up for the mailing list. After submitting your email address, you'll receive an email with a confirmation link. Once you click on it, a free advance PDF excerpt from the book will be sent directly to your inbox. Super easy, right?
They're also looking to add excerpts from individual essays at a later date, so make sure to keep checking back.
Ender's World will be released on April 2, 2013 and is available for pre-order now on Amazon. Don't miss out!