Optimise Or Die
Craig Sullivan is one of the most recognizable independent voices in experimentation, UX, analytics and conversion optimization. Through Optimise Or Die, he has built a reputation for practical, direct advice on testing, measurement, user research and digital performance. His experience across global brands, many countries and many languages gives him credibility as a practitioner who understands the messy reality of CRO inside complex businesses, not just the clean theory of testing frameworks.