51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email! [insert fun loading text here] I wish I looked as good as you while waiting Don’t forget to add a short preview description to encourage people to click on your email. Not just a pretty interface Opening the door to unlimited creativity… Try different email subject line styles to find what gets the most opens. Don’t make ‘em yawn! Keep your emails exciting and brief.