Konrad Holden Copywriter Businesses I’ve helped grow One simple landing page produced 7 leads from organic traffic only. That might not sound like much, but for this hyper-niched theological school, those 7 leads filled their sales pipeline. Senior Marketing Copywriter for Delta Defense LLC, the Official Service Provider of the U.S. Concealed Carry Association. I primarily write emails designed to convert prospects into members. One short direct mail piece that produced $17,257.13 of revenue from a $674.37 investment. An ROI of 2459%. And those are only the numbers for one of the 25 clients it was mailed for. Most of our clients reported similar results.