Newsletters have become essential for brands, with 28 billion emails sent in 2025, reaching 255 million unique readers and achieving an impressive open rate of 41%. The trend of increased engagement shows that audiences are committed to this form of communication, especially as social media becomes less reliable. Weekly newsletters are particularly popular, and shorter subject lines (under 20 words) tend to have higher open rates, while longer ones (80-100 words) have better click-through rates. Experts from the marketing field shared insights on what makes newsletters appealing. Grace Daughtry emphasizes that urgency in subject lines can be off-putting. Instead, clarity and respect for the reader's time build trust. Joseph Gallo highlights the importance of compelling content, stating that he gives newsletters five chances to impress him. If the stories aren’t engaging, he unsubscribes. Nicole Yelland and Diana Kowalsky stress the need for direct writing and enticing subject lines that accurately reflect the content inside. Consistency is another key factor. Michelle Garrett notes that newsletters sent at the same time each week become a reading habit. Nicholas Budler agrees, stating that any change in format or content can lead him to unsubscribe. Kowalsky warns against using paywalls, which can decrease click-through rates and frustrate readers. Overall, the article outlines clear strategies for creating newsletters that keep audiences engaged and coming back for more.