- Postcards are cost-effective marketing materials, akin to flyers, that efficiently deliver messages to a targeted mailing list. These cards can be printed in vibrant full color, showcasing your logo, organization name, address, phone number, website, and other essential details. Whether you're announcing a new product, promoting your business, or advertising an upcoming event, postcards are a versatile and impactful tool. Similar to flyers, they catch the eye and convey your message effectively.