You need to join.
Here are some of the reasons
This course teaches you how to sell physical product on Amazon.com. and not just any product like the millions of others out there are selling, while competing for the Buy Box. This course teaches you a way to own the Buy Box, and keep all the sales for a particular product yourself.
Then they provide more training on how to promote those products on the Internet, and offer a full suite of tools that helps facilitate that promotional effort, with support for videos, press releases and more.