Zack Exley served as a senior advisor on the Bernie Sanders presidential campaign and was an architect of the campaign's national, volunteer-driven grassroots campaign. Zack was a union organizer before becoming MoveOn.org's first organizing director in its campaign to prevent the war in Iraq in 2003. As an early advisor to the Howard Dean campaign, he helped transfer MoveOn.org's early fundraising and organizing discoveries into presidential politics, and he then served as John Kerry's director of online fundraising and communications in the general election where his team raised more than $100 million online for the nominee. Subsequently, Zack worked as a consultant to global NGOs, campaigns, and companies, and served as Wikipedia's chief community officer and chief revenue officer. For more information about Zack, Rules for Revolutionaries, and a downloadable, open-source teaching tool to help you implement change in your community, visit www.bigorganizing.com.