Craig Sullivan

Craig Sullivan is a conversion optimisation consultant and the founder of Optimise or Die, known online by that name. He has spent many years combining user experience, analytics, A/B testing and customer research, and has worked on optimisation for companies such as Google, LOVEFiLM, Lego, John Lewis, eBay and the Financial Times. At Belron he led work that raised the company’s worldwide online conversion rates by more than 40 percent in under two years.

Craig Sullivan’s recorded talk here is “The Myths, Lies and Illusions of Cross Device Testing”, given at conversions@google in 2015. As the title suggests, it questions common assumptions about testing across devices.

The talk is filed under A/B testing, mobile and mobile-device testing, and will interest conversion specialists and product teams who run experiments on sites and apps that people use on phones, tablets and desktops.