Tim Ash is an acknowledged authority on evolutionary psychology and digital marketing. He is a sought-after international keynote speaker with over 200 appearances across four continents, and the bestselling author of Unleash Your Primal Brain: Demystifying How We Think And Why We Act and Landing Page Optimization.Tim has been mentioned by Forbes as a Top-10 Online Marketing Expert, and by Entrepreneur Magazine as an Online Marketing Influencer To Watch.For nineteen years he was the co-founder and CEO of SiteTuners – a digital optimization agency. Tim helped to create over 1.2 billion dollars in value for companies like Google, Expedia, eHarmony, Facebook, American Express, Canon, Nestle, Symantec, Intuit, Humana, Siemens, and Cisco.