Call to action register to training mailings

Here are a few examples of call-to-action (CTA) phrases that you could use in a mailer to encourage recipients to register for a training program:

1. "Register Now and Take the First Step Towards Success!"
2. "Don't Miss Out! Sign Up for Our Upcoming Training Program Today!"
3. "Unlock Your Potential: Register for Our Training Program and Start Achieving Your Goals!"
4. "Get Ready to Learn and Grow: Register for Our Upcoming Training Program!"
5. "Take the Next Step in Your Career: Register for Our Training Program Today!"
6. "Don't Wait - Register Now and Reserve Your Spot in Our Training Program!"
7. "Transform Your Skills and Career: Register for Our Training Program and Start Seeing Results!"
8. "Join the Ranks of Our Successful Alumni: Register for Our Training Program Today!"
9. "Invest in Yourself: Register for Our Training Program and Start Building a Brighter Future!"
10. "Don't Miss This Opportunity: Register for Our Upcoming Training Program and Take Your Career to the Next Level!"

Remember to make your CTA clear, concise, and prominent in your mailer. You could also include a sense of urgency by adding a deadline or a limited-time offer to encourage recipients to register sooner rather than later.