One hundred percent of marketing post cards get read because, “they’ve already been opened.” Even if your reader shuts one eye, part of your marketing message will still get across. Post cards are the least expensive form of direct mail marketing, but some post card campaigns fail for very elementary reasons. Chief among the mistakes you should avoid: not carefully designing your marketing message and images, failing to target the best prospects for your campaign and allowing simple proofreading errors to destroy trust in your company. To learn how to avoid the rest of the “no-no’s,” read the full article: