One Mississippi, two Mississippi… Try different email subject line styles to find what gets the most opens. "I use PosterMyWall to create flyers for the MANY non-profit organizations that we are involved with!" - Stachia Keep your email subject line short and attention-grabbing. “There are so many beautiful designs to choose from. I feel like a professional when I use it.” - Dr. Oberson "Our charity nursery has improved their event marketing thanks to PosterMyWall flyers!" - Paula Sit up straight. 51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email!