You have selected a target market, purchased an appropriate mailing list, and had a postcard mailer professionally designed. The mailer looks great; all it needs are some words, and you’ll be good to go. Should you write the copy for your mailer yourself? After all, nobody knows your business better than you, and perhaps your spouse or a neighbor is an English teacher who can proofread it for you. And it’s not that much copy. How hard could it possibly be to come up with a few lines to fill up a postcard? Writing sales copy that converts involves far more than coming up with a few catchy phrases and making sure everything is spelled correctly. Here are five reasons why it’s a good idea to hire a professional copywriter.