Sources:

www.linkedin.com/pulse/advantages-variable-data-printing-your-next-campaign-dean-desantis-1/

blogs.alphagraphics.com/blog/2016/12/21/3-marketing-appeals-non-profits-how-to-leverage/

trillioncreative.com/benefits-variable-data-fundraising-non-profits-beyond/

blogs.alphagraphics.com/blog/2016/11/01/variable-data-printing-improve-effectiveness/

www.wilennewyork.com/blog/nonprofit-direct-mail