Maciej Lewiński

Maciej Lewiński is a marketing data analyst and educator specializing in Google Analytics, data-driven marketing strategies, and eCommerce optimization. His content focuses on practical business advice, marketing insights, and debunking common data misconceptions. He frequently posts actionable tips on LinkedIn about GA4, customer retention, and advertising efficiency. Lewiński is known for his direct, no-nonsense approach to marketing analytics and his ability to simplify complex data concepts. He shares real-world case studies and often critiques common industry practices while providing clear alternatives. His work extends to public speaking and training marketers, with a stated goal of teaching 50,000 marketers data-driven decision making by 2027.