Absolutely.  In fact, we encourage you to do just that and we have an Ambassador program that recognizes how many of your friends and family have joined.  You can earn discounts on our upcoming event and on merchandise by inviting at least 2 people to Underground Education.
To invite someone once you have joined, click HERE.  It will provide both a link which you can share on social media or in a text and it will give you an email form that you can customize to send an email invitation.  Either way, it contains your personal link to track your referrals.  That is what is used for our Ambassador program.