Jesko Perrey is a leading expert in marketing strategy and a Senior Partner at McKinsey & Company, where he serves as the Global Leader of the Marketing & Sales Practice. With a PhD from the University of Münster, he has over 20 years of experience advising global brands on marketing ROI and digital transformation. Perrey is the co-author of “Marketing Performance: How Marketers Drive Profitable Growth,” “Power Brands,” and “Retail Marketing and Branding.”