Home › Authors › Dan Zarrella 👤 Dan Zarrella 7 books Books by Dan Zarrella Social Marketing Digital Book Social Marketing Digital Book Set 2014 Science of marketing 2013 Marketing con Facebook 2011 Zarrellas Hierarchy of Contagiousness 2011 Das Social Media Marketing Buch 2010 The Facebook Marketing Book 2010 The social media marketing book 2010