It may be the most clear-cut call to action in history. A depiction of a grizzled old man in a top hat, stone-faced, pointing out toward the viewer with an unmistakable message. The army got it right way back in 1917, boiling down what they wanted from their “clients” into simple terms. Recruitment posters, after all, are just marketing materials for the armed forces, so what lessons can we take from them?
A call to action is an easy idea to understand, but sometimes seems quite difficult to master. Say you've gotten clients to your website, and you've impressed them with your knowledge and expertise in your industry. You know you have plenty more to offer them, and they're beginning to trust that you have value to provide.
