Perry Marshall is an online marketing strategist, entrepreneur, and author of several books, including Evolution 2.0: Breaking the Deadlock Between Darwin and Design, Ultimate Guide to Google AdWords, and Ultimate Guide to Facebook Advertising. He is also a Christian proponent of continuationism and evolutionary creation, delivering lectures and writing on these topics. His 80/20 curve is taught as a productivity tool in NASA’s Jet Propulsion Labs at the California Institute of Technology, and 80/20 Sales & Marketing is mandatory in many growing companies. His Ultimate Guide to Google AdWords is the world’s best selling book on internet advertising and laid the foundations for the $100 billion Pay Per Click industry, and techniques he pioneered are standard best practices. He’s consulted in over 300 industries and served as an expert witness for marketing and Google AdWords litigation. Perry has a degree in Electrical Engineering and lives in Chicago with his wife and 6 children.