Postcards provide a great opportunity for high-impact visual messages. They are an inexpensive way to get across a simple message, build name recognition or just maintain mind share. Here are some tips to help you create an effective postcard:

Brief Statement	Start with a provocative, benefit-oriented headline such as, "Are you tired of filling out extra paperwork?" A question will compel the recipient to read on.
Bold Imaging	Whether it's a photograph, your logo, or a graphic image, make sure it jumps out and ties in with your message.
Remember the Address Side	Many postcards are designed with beautiful graphics on the front, yet little attention is devoted to the address side. Most people actually look at the address side of a postcard first, so having a compelling visual image on the back helps to grab attention.
Call to Action	Give your customer something to do after seeing your postcard. Are you trying to entice the reader to request a brochure or make an appointment? Draw people to your web site or into your store? Whatever your goal is, make sure it is obvious to the reader.
Clear/Concise Message	Too many words can slow a reader down and clutter a postcard. Rather than highlight every benefit, focus on the three most compelling. If you can call your reader to action, they will later learn about your full range of expertise.