Color: Use contrasting colors to make the button stand out. Ensure it aligns with your brand's color scheme. Text: Use action-oriented words. Keep the text concise but compelling. Size: Make sure the button is large enough to be easily clickable on both desktop and mobile devices. Placement: Place the button where it naturally follows the email's flow and stands out. Typically, buttons are placed near the end of a section or at the bottom of the email.