Visibility: Ensure the button is prominently visible in your email layout. Use contrasting colors to make it stand out. Text: Use clear and concise text like "Buy Now," "Shop Now," or "Get Yours Today" to convey urgency. Size: Make the button large enough to be easily clickable but not so large that it overwhelms other content. Placement: Position the button near the top of your email and around key product information to make it easily accessible.