In his role, John works closely with GroupM’s digital and media experts, taking best practices for online safety and viewability and implementing them in global markets. Focused on digital safety in the inventory supply chain, John works tirelessly to help clients ensure their messages are 100% viewable, in brand-safe environments, with a consumer-friendly experience. John has more than two decades of experience in the media industry, specifically with WPP, and is viewed widely as a top digital innovator. John is chairman of the 4A’s Media Leadership Council and co-chairman of the TAG anti-piracy initiative.