Mal Warwick is an ex-Peace Corps volunteer (Ecuador 1965–69) turned serial entrepreneur, impact investor, and blogger who has been active in advocating for social and environmental responsibility in the business community nationwide in the United States for more than two decades. He is the co-author with Paul Polak of The Business Solution to Poverty: Designing Products and Services for Three Billion New Customers (2013). A former chair of Social Venture Network (SVN), Mal is the coauthor, with Ben Cohen, cofounder of Ben & Jerry's, of Values-Driven Business: How to Change the World, Make Money, and Have Fun (2006), and is the editor of the seven subsequent titles in Berrett-Koehler's SVN book series. He has written, coauthored, or edited 18 other books, including two that are standard texts in the field of nonprofit fundraising, and has reviewed both fiction and nonfiction in his blog, Mal Warwick on Books, since January 2010. 

During Mal's 30-year career in fundraising, he was widely regarded as one of the world's leading authorities on direct mail and online fundraising for nonprofits. He taught fundraising to nonprofit executives on six continents from more than 100 countries. Mal chaired several industry groups and received top awards for his ground-breaking work. Currently, he chairs the board of Mal Warwick.