Cristina Martinez is an accomplished data scientist and academic with extensive experience in both the corporate and educational realms. She holds degrees in Optics and Optometry, Economics, and Mathematics and Statistics from prestigious universities in Spain. Martinez is currently the Head of Data Science at GfK in Spain, where she plays a crucial role in managing data analytics projects and providing insights to clients in multiple industries. Martinez is also a former professor in the Master of Marketing Science program at ESIC and the Master of Marketing program at Universidad Carlos III de Madrid, where she imparted her extensive knowledge in research methods, data analysis, and statistics to eager students. She has also held various managerial positions at GFK Emer Ad Hoc Research, where she oversaw research projects in the consumer goods sector. With her analytical expertise and strong educational background, Cristina Martinez has made a significant contribution to the field of data science in Spain.