How do you use stationary in y mail?

To use stationery in Yahoo Mail, first, compose a new email by clicking on "Compose." In the email window, look for the "Stationery" option or icon, usually represented by a paint palette or similar symbol. Click on it to browse and select from various templates and designs available. Once you've chosen your preferred stationery, it will be applied to your email, allowing you to customize your message.