Here are some things to consider when designing your letterhead:
The basics: Who you are, where you are, and how to get in touch with you–that is, the same stuff you’d put on a business card: company name, logo, physical address, email, phone, fax, and web address, and perhaps a tagline.
Beyond the basics: Other ways to keep in touches, such as Facebook, Twitter, or Skype.
Standard industry practices: You could stop at printing services in Cork with the necessary information about your communication channels, but in specific industries, it’s common to include additional design elements. A medical clinic might list the names of the doctors in practice. A law firm might list the names of the partners. Some charitable organizations list significant donors or sponsors or the names of their directors.
Don’t go crazy: It’s easy to get carried away when designing a letterhead. Just remember that the purpose is a meaningful platform for sending written communication. This means you need to leave room for the content, and the visual design of the letterhead should not distract the recipient from the content. Keep it simple and keep it usable.
Color or no color: Color is usually good—it says, “I cared enough about my image to show I didn’t just print this on my office laser printer.” Just don’t go overboard; your logo and one or two other places are probably all the colors you need.
Fancy add-ons: There was a time when raised lettering, cutouts, expensive linen paper, and custom watermarks were essential, but considering the limited applications for which you will use letterhead, these are probably no longer worth the extra money.