Who We Are

Mary Glenn, Publisher

Mary Glenn is the Publisher of Humanix Books and is an award-winning editor and has held senior editorial and leadership positions at numerous global publishing companies including McGraw-Hill, where she was the Associate Publisher, as well as American Management Association, Paragon and Praeger.  

Keith Pfeffer, Deputy Publisher

Keith Pfeffer, Deputy Publisher of Humanix Books, is responsible for Global Sales, Marketing, PR & Rights and has held senior leadership positions at Callisto Media, Harvard Business Review Press, where he was Associate Publisher, and also led sales & marketing teams at McGraw-Hill, Hachette and HarperCollins, and began his career in publishing as a bookseller and marketing manager at Borders Books. Pfeffer has led the successful sales & marketing campaigns for many bestselling books and partnered with such authors as: Jim Collins (GOOD TO GREAT), Jack Welch (WINNING), Mehmet Oz (YOU: THE OWNER’S MANUAL), Peter Drucker (THE DAILY DRUCKER), Marcus Buckingham (STANDOUT 2.0), Reid Hoffman (THE ALLIANCE), Ram Charan (TALENT WINS), Renee Mauborgne & W Chan Kim (BLUE OCEAN STRATEGY), and Jack Canfield (THE SUCCESS PRINCIPLES). A content creator, Pfeffer is experienced in developing and executing acquisition and brand strategies, identifying and publishing high-impact authors and high-return opportunity topics and projects, and has developed and brought to market many branded series, extension products & stand-alone bestsellers.